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144-465: 35°33′30″N 139°23′43″E  /  35.55833°N 139.39528°E  / 35.55833; 139.39528 This space - or spaceflight -related article is a stub . You can help Misplaced Pages by expanding it . This article about an organization or organization-related topic in Japan is a stub . You can help Misplaced Pages by expanding it . Outer space Outer space (or simply space )

288-499: A bird strike or because of a sudden move to avoid another aircraft. Because of the out-of-date weather report, the crew believed their altitude was higher than it was and could not react properly to bring the MiG-15 out of its spin. Another theory, advanced in 2005 by the original crash investigator, hypothesizes that a cabin air vent was accidentally left open by the crew or the previous pilot, leading to oxygen deprivation and leaving

432-424: A spacecraft must travel faster than a sub-orbital spaceflight along an arcing trajectory . The energy required to reach Earth orbital velocity at an altitude of 600 km (370 mi) is about 36  MJ /kg, which is six times the energy needed merely to climb to the corresponding altitude. The escape velocity required to pull free of Earth's gravitational field altogether and move into interplanetary space

576-526: A "sensible drinker", his touring schedule placed him in social situations in which he was increasingly expected to drink alcohol. Two years later, he was re-elected as a deputy of the Soviet Union but this time to the Soviet of Nationalities , the upper chamber of the legislature. The following year, he began to re-qualify as a fighter pilot and was backup pilot for his friend Vladimir Komarov on

720-873: A 12-mile (19 km) parade attended by millions of people that concluded at the Red Square. After a short speech, he was bestowed the Hero of the Soviet Union, Order of Lenin , Merited Master of Sports of the Soviet Union and the first Pilot-Cosmonaut of the USSR . On 15 April, the Soviet Academy of Sciences awarded him with the Konstantin Tsiolkovsky Gold Medal, named after the Russian pioneer of space aeronautics . Gagarin had also been awarded four Soviet commemorative medals over

864-594: A cadet in flight school, Gagarin met Valentina Goryacheva at the May Day celebrations at the Red Square in Moscow. She was a medical technician who had graduated from Orenburg Medical School. They were married on 7 November of the same year, the same day Gagarin graduated from his flight school. Valentina and Yuri had two daughters. Yelena Yurievna Gagarina , born 1959, is an art historian who has worked as

1008-587: A correspondence course programme at the Zhukovsky Air Force Engineering Academy . Gagarin enrolled in September 1960 and did not earn his specialist diploma until early 1968. Gagarin was also subjected to experiments that were designed to test physical and psychological endurance, including oxygen starvation tests in which the cosmonauts were locked in an isolation chamber and the air slowly pumped out. He also trained for

1152-497: A demotion he worked hard to lift. He was temporarily relieved of duties to focus on academics with the promise that he would be able to resume flight training. On 17 February 1968, Gagarin successfully defended his aerospace engineering thesis on the subject of spaceplane aerodynamic configuration and graduated cum laude from the Zhukovsky Air Force Engineering Academy. In 1957, while

1296-471: A density of one proton per four cubic meters. The density of the universe is clearly not uniform; it ranges from relatively high density in galaxies—including very high density in structures within galaxies, such as planets, stars, and black holes —to conditions in vast voids that have much lower density, at least in terms of visible matter. Unlike matter and dark matter, dark energy seems not to be concentrated in galaxies: although dark energy may account for

1440-452: A full-size mockup of the Vostok capsule. Gagarin, Nikolayev, Popovich, and Titov all received excellent marks on the first day of testing, in which they were required to describe the various phases of the mission followed by questions from the commission. On the second day, they were given a written examination, following which the special commission ranked Gagarin as the best candidate. He and

1584-532: A hazard to astronauts, even in low Earth orbit. They create aurorae seen at high latitudes in an oval surrounding the geomagnetic poles . xGeo space is a concept used by the US to refer to space of high Earth orbits , ranging from beyond geosynchronous orbit (GEO) at approximately 35,786 km (22,236 mi), out to the L2 Earth-Moon Lagrange point at 448,900 km (278,934 mi). This

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1728-535: A high-level national hero might be killed, Soviet officials banned Gagarin from participating in further spaceflights. After completing training at the Zhukovsky Air Force Engineering Academy in February 1968, he was again allowed to fly regular aircraft. However, Gagarin died five weeks later, when the MiG-15 that he was piloting with flight instructor Vladimir Seryogin crashed near the town of Kirzhach . Gagarin

1872-512: A majority of the mass-energy in the universe, dark energy's influence is 5 orders of magnitude smaller than the influence of gravity from matter and dark matter within the Milky Way. Outer space is the closest known approximation to a perfect vacuum . It has effectively no friction , allowing stars, planets , and moons to move freely along their ideal orbits , following the initial formation stage. The deep vacuum of intergalactic space

2016-633: A musical. There are statues of Gagarin and monuments to him located in the town named after him as well as in Orenburg , Cheboksary , Irkutsk , Izhevsk , Komsomolsk-on-Amur , and Yoshkar-Ola in Russia, as well as in Nicosia , Cyprus, Druzhkivka , Ukraine, Karaganda , Kazakhstan, and Tiraspol , Moldova. On 4 June 1980, Monument to Yuri Gagarin in Gagarin Square, Leninsky Avenue, Moscow ,

2160-541: A new investigation. In April 2011, documents from a 1968 commission set up by the Central Committee of the Communist Party to investigate the accident were declassified. The documents revealed that the commission's original conclusion was that Gagarin or Seryogin had manoeuvred sharply, either to avoid a weather balloon or to avoid "entry into the upper limit of the first layer of cloud cover", leading

2304-615: A part-time dock labourer on the Volga River . In 1955, Gagarin was accepted to the First Chkalov Higher Air Force Pilots School in Orenburg . He initially began training on the Yak-18 already familiar to him and later graduated to training on the MiG-15 in February 1956. Gagarin twice struggled to land the two-seater trainer aircraft, and risked dismissal from pilot training. However,

2448-417: A passage that upholds the official Soviet position on religious belief: "The manned space flight was a crushing blow to the churchmen. In the streams of letters that addressed to me, I was pleased to read confessions in which believers, impressed by the achievements of science, renounced God, agreed that there is no god and everything connected with his name is fiction and nonsense". On 27 March 1968, while on

2592-509: A perigee as low as 80 to 90 km (50 to 56 mi), surviving for multiple orbits. At an altitude of 120 km (75 mi), descending spacecraft such as NASA 's Space Shuttle begin atmospheric entry (termed the Entry Interface), when atmospheric drag becomes noticeable, thus beginning the process of switching from steering with thrusters to maneuvering with aerodynamic control surfaces. The Kármán line , established by

2736-643: A practical boundary have been proposed, ranging from 30 km (19 mi) out to 1,600,000 km (990,000 mi). High-altitude aircraft , such as high-altitude balloons have reached altitudes above Earth of up to 50 km. Up until 2021, the United States designated people who travel above an altitude of 50 mi (80 km) as astronauts. Astronaut wings are now only awarded to spacecraft crew members that "demonstrated activities during flight that were essential to public safety, or contributed to human space flight safety." In 2009, measurements of

2880-571: A reputation as an adept public figure and was noted for his charismatic smile. On 15 April 1961, accompanied by officials from the Soviet Academy of Sciences, he answered questions at a press conference in Moscow reportedly attended by 1,000 reporters. Gagarin visited the United Kingdom three months after the Vostok 1 mission, going to London and Manchester . While in Manchester, despite heavy rain, he refused an umbrella, insisted that

3024-518: A routine training flight from Chkalovsky air base, Gagarin and flight instructor Vladimir Seryogin died when their MiG-15UTI crashed near the town of Kirzhach . The bodies of Gagarin and Seryogin were cremated and their ashes interred in the walls of the Kremlin . Wrapped in secrecy, the cause of the crash that killed Gagarin is uncertain and became the subject of speculation, including several conspiracy theories. At least three investigations into

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3168-702: A series of subsequent orders issued until June. Gagarin began training at the Khodynka Airfield in central Moscow on 15 March 1960. The training regimen involved vigorous and repetitive physical exercises which Alexei Leonov , a member of the initial group of twelve, described as akin to training for the Olympic Games . In April 1960, they began parachute training in Saratov Oblast and each man completed about 40 to 50 jumps from both low and high altitude, over both land and water. Gagarin

3312-487: A simulated Martian environment. The lithopanspermia hypothesis suggests that rocks ejected into outer space from life-harboring planets may successfully transport life forms to another habitable world. A conjecture is that just such a scenario occurred early in the history of the Solar System, with potentially microorganism -bearing rocks being exchanged between Venus, Earth, and Mars. The lack of pressure in space

3456-648: A spacecraft; similarly, " space-based " means based in outer space or on a planet or moon. The size of the whole universe is unknown, and it might be infinite in extent. According to the Big Bang theory, the very early universe was an extremely hot and dense state about 13.8 billion years ago which rapidly expanded . About 380,000 years later the universe had cooled sufficiently to allow protons and electrons to combine and form hydrogen—the so-called recombination epoch . When this happened, matter and energy became decoupled, allowing photons to travel freely through

3600-432: A well-developed imagination; quick reactions; persevering, prepares himself painstakingly for his activities and training exercises, handles celestial mechanics and mathematical formulae with ease as well as excels in higher mathematics; does not feel constrained when he has to defend his point of view if he considers himself right; appears that he understands life better than a lot of his friends. The Vanguard Six were given

3744-553: A window and jumped off a second floor balcony. The resulting injury left a permanent scar above his left eyebrow. In his youth Gagarin was a keen sportsman and played ice hockey as a goalkeeper. He was also a basketball fan and coached the Saratov Industrial Technical School team, as well as being a referee. Some Soviet sources have said that Gagarin commented during his space flight, "I don't see any god up here.", though no such words appear in

3888-472: Is a continuous stream of charged particles emanating from the Sun which creates a very tenuous atmosphere (the heliosphere ) for billions of kilometers into space. This wind has a particle density of 5–10 protons /cm and is moving at a velocity of 350–400 km/s (780,000–890,000 mph). Interplanetary space extends out to the heliopause where the influence of the galactic environment starts to dominate over

4032-496: Is about 11,200 m/s (40,300 km/h; 25,100 mph). Orbiting spacecraft with a perigee below about 2,000 km (1,200 mi) are subject to drag from the Earth's atmosphere, which decreases the orbital altitude. The rate of orbital decay depends on the satellite's cross-sectional area and mass, as well as variations in the air density of the upper atmosphere. At altitudes above 800 km (500 mi), orbital lifetime

4176-511: Is about five times the Moon's orbital distance , but which distance is also far less than the distance between Earth and any adjacent planet. Interplanetary space within the Solar System is the space between the eight planets, the space between the planets and the Sun, as well as that space beyond the orbit of the outermost planet Neptune where the solar wind remains active. The solar wind

4320-614: Is called Yuri Gagarin Street . The town of Gagarin, Armenia was renamed in his honour in 1961. Gagarin has been honoured on the Moon by astronauts and astronomers. During the American space programme's Apollo 11 mission in 1969, astronauts Neil Armstrong and Buzz Aldrin left a memorial satchel containing medals commemorating Gagarin and Komarov on the Moon's surface. In 1971, Apollo 15 astronauts David Scott and James Irwin left

4464-410: Is co-populated by groups of co-orbital Near-Earth Objects (NEOs), such as horseshoe librators and Earth trojans , with some NEOs at times becoming temporary satellites and quasi-moons to Earth. Deep space is defined by the United States government as all of outer space which lies further from Earth than a typical low-Earth-orbit, thus assigning the Moon to deep-space. Other definitions vary

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4608-537: Is conventionally used as the start of outer space in space treaties and for aerospace records keeping. Certain portions of the upper stratosphere and the mesosphere are sometimes referred to as "near space". The framework for international space law was established by the Outer Space Treaty , which entered into force on 10 October 1967. This treaty precludes any claims of national sovereignty and permits all states to freely explore outer space . Despite

4752-496: Is divided into overlapping regions of space. Near-Earth space is the region of space extending from low Earth orbits out to geostationary orbits . This region includes the major orbits for artificial satellites and is the site of most of humanity's space activity. The region has seen high levels of space debris, sometimes dubbed space pollution , threatening any space activity in this region. Some of this debris re-enters Earth's atmosphere periodically. Although it meets

4896-438: Is free for all nation states to explore and is not subject to claims of national sovereignty, calling outer space the "province of all mankind". This status as a common heritage of mankind has been used, though not without opposition, to enforce the right to access and shared use of outer space for all nations equally, particularly non-spacefaring nations. It prohibits the deployment of nuclear weapons in outer space. The treaty

5040-722: Is held annually to commemorate milestones in space exploration. In 2011, it was declared the International Day of Human Space Flight by the United Nations. A number of buildings and locations have been named for Gagarin, mostly in Russia but also in other Soviet republics. The Yuri Gagarin Cosmonaut Training Center in Star City was named on 30 April 1968. The launch pad at Baikonur Cosmodrome from which Sputnik 1 and Vostok 1 were launched

5184-492: Is located beyond the orbit of the Moon and therefore includes cislunar space. Translunar space is the region of lunar transfer orbits , between the Moon and Earth. Cislunar space is a region outside of Earth that includes lunar orbits , the Moon's orbital space around Earth and the Lagrange points . The region where a body's gravitational potential remains dominant against gravitational potentials from other bodies,

5328-475: Is measured in centuries. Below about 300 km (190 mi), decay becomes more rapid with lifetimes measured in days. Once a satellite descends to 180 km (110 mi), it has only hours before it vaporizes in the atmosphere. Space in proximity to the Earth is physically similar to the remainder of interplanetary space, but is home to a multitude of Earth–orbiting satellites and has been subject to extensive studies. For identification purposes, this volume

5472-422: Is measured in terms of the kinetic activity of the gas, as it is on Earth. The radiation of outer space has a different temperature than the kinetic temperature of the gas, meaning that the gas and radiation are not in thermodynamic equilibrium . All of the observable universe is filled with photons that were created during the Big Bang, which is known as the cosmic microwave background radiation (CMB). (There

5616-618: Is memorialised in music; a cycle of Soviet patriotic songs titled The Constellation Gagarin ( Созвездье Гагарина , Sozvezdie Gagarina ) was written by Aleksandra Pakhmutova and Nikolai Dobronravov in 1970–1971. The most famous of these songs refers to Gagarin's poyekhali! : in the lyrics, "He said 'let's go!' He waved his hand". He was the inspiration for the pieces "Hey Gagarin" by Jean-Michel Jarre on Métamorphoses , "Gagarin" by Public Service Broadcasting , and "Gagarin, I loved you" by Undervud . Vessels have been named for Gagarin; Soviet tracking ship Kosmonavt Yuriy Gagarin

5760-449: Is not devoid of matter , as it contains a few hydrogen atoms per cubic meter. By comparison, the air humans breathe contains about 10 molecules per cubic meter. The low density of matter in outer space means that electromagnetic radiation can travel great distances without being scattered: the mean free path of a photon in intergalactic space is about 10  km, or 10 billion light years. In spite of this, extinction , which

5904-713: Is now known as Gagarin's Start . Gagarin Raion in Sevastopol was named after him during the period of the Soviet Union. The Russian Air Force Academy was renamed the Gagarin Air Force Academy in 1968. The town of Gzhatsk where he lived in Smolensk Oblast was renamed Gagarin after his death in 1968, and has since become home to numerous museums and monuments to him. A street in Warsaw, Poland,

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6048-559: Is quite likely a correspondingly large number of neutrinos called the cosmic neutrino background . ) The current black body temperature of the background radiation is about 2.7 K (−455 °F). The gas temperatures in outer space can vary widely. For example, the temperature in the Boomerang Nebula is 1 K (−458 °F), while the solar corona reaches temperatures over 1,200,000–2,600,000 K (2,200,000–4,700,000 °F). Magnetic fields have been detected in

6192-631: Is slowed by the pressure containment of blood vessels, so some blood remains liquid. Swelling and ebullism can be reduced by containment in a pressure suit . The Crew Altitude Protection Suit (CAPS), a fitted elastic garment designed in the 1960s for astronauts, prevents ebullism at pressures as low as 2 kilopascals (0.3 psi). Supplemental oxygen is needed at 8 km (5 mi) to provide enough oxygen for breathing and to prevent water loss, while above 20 km (12 mi) pressure suits are essential to prevent ebullism. Most space suits use around 30–39 kilopascals (4–6 psi) of pure oxygen, about

6336-538: Is the absorption and scattering of photons by dust and gas, is an important factor in galactic and intergalactic astronomy . Stars, planets, and moons retain their atmospheres by gravitational attraction. Atmospheres have no clearly delineated upper boundary: the density of atmospheric gas gradually decreases with distance from the object until it becomes indistinguishable from outer space. The Earth's atmospheric pressure drops to about 0.032 Pa at 100 kilometres (62 miles) of altitude, compared to 100,000 Pa for

6480-451: Is the body's sphere of influence or gravity well, mostly described with the Hill sphere model. In the case of Earth this includes all space from the Earth to a distance of roughly 1% of the mean distance from Earth to the Sun, or 1.5 million km (0.93 million mi). Beyond Earth's Hill sphere extends along Earth's orbital path its orbital and co-orbital space. This space

6624-415: Is the expanse that exists beyond Earth's atmosphere and between celestial bodies . It contains ultra-low levels of particle densities , constituting a near-perfect vacuum of predominantly hydrogen and helium plasma , permeated by electromagnetic radiation , cosmic rays , neutrinos , magnetic fields and dust . The baseline temperature of outer space, as set by the background radiation from

6768-514: Is the most immediate dangerous characteristic of space to humans. Pressure decreases above Earth, reaching a level at an altitude of around 19.14 km (11.89 mi) that matches the vapor pressure of water at the temperature of the human body . This pressure level is called the Armstrong line , named after American physician Harry G. Armstrong . At or above the Armstrong line, fluids in

6912-557: The Fédération Aéronautique Internationale (FAI), the world governing body for setting standards and keeping records in the field, which at the time required that the pilot land with the craft. Gagarin and Soviet officials initially refused to admit that he had not landed with his spacecraft, an omission which became apparent after Titov's flight on Vostok 2 four months later. Gagarin's spaceflight records were nonetheless certified and reaffirmed by

7056-568: The Andromeda Galaxy was first measured. Humans began the physical exploration of space later in the same century with the advent of high-altitude balloon flights . This was followed by crewed rocket flights and, then, crewed Earth orbit, first achieved by Yuri Gagarin of the Soviet Union in 1961. The economic cost of putting objects, including humans, into space is very high, limiting human spaceflight to low Earth orbit and

7200-481: The Big Bang , is 2.7 kelvins (−270 °C; −455 °F). The plasma between galaxies is thought to account for about half of the baryonic (ordinary) matter in the universe, having a number density of less than one hydrogen atom per cubic metre and a kinetic temperature of millions of kelvins . Local concentrations of matter have condensed into stars and galaxies . Intergalactic space takes up most of

7344-475: The Bogotá Declaration , they claimed control of the segment of the geosynchronous orbital path corresponding to each country. These claims are not internationally accepted. An increasing issue of international space law and regulation has been the dangers of the growing number of space debris . A spacecraft enters orbit when its centripetal acceleration due to gravity is less than or equal to

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7488-571: The Fédération Aéronautique Internationale , and used internationally by the United Nations , is set at an altitude of 100 km (62 mi) as a working definition for the boundary between aeronautics and astronautics. This line is named after Theodore von Kármán , who argued for an altitude where a vehicle would have to travel faster than orbital velocity to derive sufficient aerodynamic lift from

7632-511: The Gagarin Cup . In a 2010 Space Foundation survey, Gagarin was ranked as the sixth-most-popular space hero, tied with the fictional character James T. Kirk from Star Trek . A Russian docudrama titled Gagarin: First in Space was released in 2013. Previous attempts at portraying Gagarin were disallowed; his family took legal action over his portrayal in a fictional drama and vetoed

7776-792: The Hero of Labour award from the Democratic Republic of Vietnam , the Italian Columbus Day Medal, and a Gold Medal from the British Interplanetary Society . President Jânio Quadros of Brazil decorated Gagarin on 2 August 1961 with the Order of Aeronautical Merit , Commander grade. During a tour of Egypt in late January 1962, Gagarin received the Order of the Nile and the golden keys to

7920-563: The International Union of Pure and Applied Chemistry (IUPAC) definition of standard pressure . Above this altitude, isotropic gas pressure rapidly becomes insignificant when compared to radiation pressure from the Sun and the dynamic pressure of the solar wind . The thermosphere in this range has large gradients of pressure, temperature and composition, and varies greatly due to space weather . The temperature of outer space

8064-443: The Moon . On the other hand, uncrewed spacecraft have reached all of the known planets in the Solar System . Outer space represents a challenging environment for human exploration because of the hazards of vacuum and radiation . Microgravity has a negative effect on human physiology that causes both muscle atrophy and bone loss . The use of the short version space , as meaning 'the region beyond Earth's sky', predates

8208-565: The Russian Orthodox Church as a child, and a 2011 Foma magazine article quoted the rector of the Orthodox Church in Star City saying, "Gagarin baptized his elder daughter Yelena shortly before his space flight; and his family used to celebrate Christmas and Easter and keep icons in the house". Nevertheless, Gagarin's officially sanctioned autobiography, released by the USSR's state publishing house in 1961, includes

8352-607: The Soyuz 1 flight after five years without piloting duty. Kamanin had opposed Gagarin's reassignment to cosmonaut training; he had gained weight and his flying skills had deteriorated. Despite this, he remained a strong contender for Soyuz 1 until he was replaced by Komarov in April 1966 and reassigned to Soyuz 3 . The Soyuz 1 launch was rushed due to implicit political pressures and despite Gagarin's protests that additional safety precautions were necessary. Gagarin accompanied Komarov to

8496-595: The Vanguard Six or Sochi Six, from which the first cosmonauts of the Vostok programme would be chosen. The other members of the group were Anatoly Kartashov , Andriyan Nikolayev , Pavel Popovich , Gherman Titov , and Valentin Varlamov . However, Kartashov and Varlamov were injured and replaced by Khrunov and Grigory Nelyubov . As several of the candidates selected for the programme including Gagarin did not have higher education degrees, they were enrolled in

8640-726: The Vostok programme was overseen by the Central Flight Medical Commission led by Major General Konstantin Fyodorovich Borodin of the Soviet Army Medical Service. He underwent physical and psychological testing conducted at Central Aviation Scientific-Research Hospital, in Moscow, commanded by Colonel A.S. Usanov, a member of the commission. The commission also included Colonel Yevgeniy Anatoliyevich Karpov, who later commanded

8784-480: The centrifugal acceleration due to the horizontal component of its velocity. For a low Earth orbit , this velocity is about 7,800 m/s (28,100 km/h; 17,400 mph); by contrast, the fastest piloted airplane speed ever achieved (excluding speeds achieved by deorbiting spacecraft) was 2,200 m/s (7,900 km/h; 4,900 mph) in 1967 by the North American X-15 . To achieve an orbit,

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8928-514: The cosmic microwave background using satellites like the Wilkinson Microwave Anisotropy Probe . These observations indicate that the spatial geometry of the observable universe is " flat ", meaning that photons on parallel paths at one point remain parallel as they travel through space to the limit of the observable universe, except for local gravity. The flat universe, combined with the measured mass density of

9072-510: The director general of the Moscow Kremlin Museums since 2001; and Galina Yurievna Gagarina, born 1961, is a professor of economics and the department chair at Plekhanov Russian University of Economics in Moscow. Following his rise to fame, at a Black Sea resort in September 1961, he was reportedly caught by his wife during a liaison with a nurse who had aided him after a boating incident. He attempted to escape through

9216-467: The immune system . Lesser symptoms include loss of body mass, nasal congestion, sleep disturbance, and puffiness of the face. During long-duration space travel, radiation can pose an acute health hazard . Exposure to high-energy, ionizing cosmic rays can result in fatigue, nausea, vomiting, as well as damage to the immune system and changes to the white blood cell count. Over longer durations, symptoms include an increased risk of cancer, plus damage to

9360-426: The zodiacal light . Interplanetary space contains the magnetic field generated by the Sun. There are magnetospheres generated by planets such as Jupiter, Saturn, Mercury and the Earth that have their own magnetic fields. These are shaped by the influence of the solar wind into the approximation of a teardrop shape, with the long tail extending outward behind the planet. These magnetic fields can trap particles from

9504-421: The Earth's magnetosphere and the solar wind. The inner boundary is the ionosphere . The variable space-weather conditions of geospace are affected by the behavior of the Sun and the solar wind; the subject of geospace is interlinked with heliophysics —the study of the Sun and its impact on the planets of the Solar System. The day-side magnetopause is compressed by solar-wind pressure—the subsolar distance from

9648-531: The FAI, which revised its rules, and acknowledged that the crucial steps of the safe launch, orbit, and return of the pilot had been accomplished. Gagarin is internationally recognised as the first human in space and first to orbit the Earth. Gagarin's flight was a triumph for the Soviet space programme and he became a national hero of the Soviet Union and Eastern Bloc, as well as a worldwide celebrity. Newspapers around

9792-504: The Red Army find mines buried in the roads by the fleeing German army. In 1946, the family moved to Gzhatsk, where Gagarin continued his education. Yuri and Boris were enrolled at a crude school built in the town and run by a young woman who volunteered to be the teacher. They learned to read using a discarded Soviet military manual. A former Soviet airman later joined the school to teach maths and science, Yuri's favourite subjects. Yuri

9936-729: The Soviet Union . Hailing from the village of Klushino in the Russian SFSR , Gagarin was a foundryman at a steel plant in Lyubertsy in his youth. He later joined the Soviet Air Forces as a pilot and was stationed at the Luostari Air Base , near the Norway–Soviet Union border , before his selection for the Soviet space programme alongside five other cosmonauts. Following his spaceflight, Gagarin became

10080-452: The Sun. It is the space between the stars or stellar systems within a nebula or galaxy. Interstellar space contains an interstellar medium of sparse matter and radiation. The boundary between an astrosphere and interstellar space is known as an astropause . For the Sun, the astrosphere and astropause are called the heliosphere and heliopause. Approximately 70% of the mass of the interstellar medium consists of lone hydrogen atoms; most of

10224-492: The United States. In 1962, Gagarin began serving as a deputy to the Soviet of the Union , and was elected to the Central Committee of the Young Communist League . He later returned to Star City , the cosmonaut facility, where he spent several years working on designs for a reusable spacecraft. He became a lieutenant colonel of the Soviet Air Forces on 12 June 1962, and received the rank of colonel on 6 November 1963. On 20 December, Gagarin became Deputy Training Director of

10368-736: The atmosphere to support itself, which he calculated to be at an altitude of about 83.8 km (52.1 mi). This distinguishes altitudes below as the region of aerodynamics and airspace , and above as the space of astronautics and free space . There is no internationally recognized legal altitude limit on national airspace, although the Kármán line is the most frequently used for this purpose. Objections have been made to setting this limit too high, as it could inhibit space activities due to concerns about airspace violations. It has been argued for setting no specified singular altitude in international law, instead applying different limits depending on

10512-498: The blood empties into the lungs to try to equalize the partial pressure gradient. Once the deoxygenated blood arrives at the brain, humans lose consciousness after a few seconds and die of hypoxia within minutes. Blood and other body fluids boil when the pressure drops below 6.3 kilopascals (1 psi), and this condition is called ebullism . The steam may bloat the body to twice its normal size and slow circulation, but tissues are elastic and porous enough to prevent rupture. Ebullism

10656-399: The body adjusts to the new environment. Longer-term exposure to weightlessness results in muscle atrophy and deterioration of the skeleton, or spaceflight osteopenia . These effects can be minimized through a regimen of exercise. Other effects include fluid redistribution, slowing of the cardiovascular system , decreased production of red blood cells , balance disorders, and a weakening of

10800-426: The call sign Kedr ( Кедр , Siberian pine or cedar ). The radio communication between the launch control room and Gagarin included the following dialogue at the moment of rocket launch: Korolev: Preliminary stage ... intermediate... main... LIFT-OFF! We wish you a good flight. Everything's all right. Gagarin: Off we go! Goodbye, until [we meet] soon, dear friends. Gagarin's farewell to Korolev using

10944-507: The case, in particular based on the craft and its purpose. Spacecraft have flown over foreign countries as low as 30 km (19 mi), as in the example of the Space Shuttle. The Outer Space Treaty provides the basic framework for international space law. It covers the legal use of outer space by nation states, and includes in its definition of outer space , the Moon, and other celestial bodies. The treaty states that outer space

11088-414: The center of the Earth is typically 10 Earth radii. On the night side, the solar wind stretches the magnetosphere to form a magnetotail that sometimes extends out to more than 100–200 Earth radii. For roughly four days of each month, the lunar surface is shielded from the solar wind as the Moon passes through the magnetotail. Geospace is populated by electrically charged particles at very low densities,

11232-478: The commander of the regiment decided to give him another chance at landing. Gagarin's flight instructor gave him a cushion to sit on, which improved his view from the cockpit, and he landed successfully. Having completed his evaluation in a trainer aircraft, Gagarin began flying solo in 1957. On 5 November 1957, Gagarin was commissioned a lieutenant in the Soviet Air Forces , having accumulated 166 hours and 47 minutes of flight time. He graduated from flight school

11376-432: The commission approved the proposal and moved on to other last-minute logistical issues. It was assumed that in the event Gagarin developed health problems prior to liftoff, Titov would take his place, with Nelyubov acting as his backup. On 12 April 1961, at 6:07 am UTC , the Vostok 3KA-3 ( Vostok 1 ) spacecraft was launched from Baikonur Cosmodrome . Aboard was Gagarin, the first human to travel into space, using

11520-447: The continually expanding space. Matter that remained following the initial expansion has since undergone gravitational collapse to create stars, galaxies and other astronomical objects, leaving behind a deep vacuum that forms what is now called outer space. As light has a finite velocity, this theory constrains the size of the directly observable universe. The present day shape of the universe has been determined from measurements of

11664-406: The cosmic rays upon the shielding produces additional radiation that can affect the crew. Further research is needed to assess the radiation hazards and determine suitable countermeasures. The transition between Earth's atmosphere and outer space lacks a well-defined physical boundary, with the air pressure steadily decreasing with altitude until it mixes with the solar wind. Various definitions for

11808-433: The cosmonaut training facility. Soviet officials, including Kamanin, tried to keep Gagarin away from any flights, being worried about losing their hero in an accident noting that he was "too dear to mankind to risk his life for the sake of an ordinary space flight". Kamanin was also concerned by Gagarin's drinking and believed the sudden rise to fame had taken its toll on the cosmonaut. While acquaintances say Gagarin had been

11952-482: The course of his career. He was honoured as a Hero of Socialist Labour from Czechoslovakia on 29 April 1961, and Hero of Socialist Labour (Bulgaria, including the Order of Georgi Dimitrov ) the same year. On the eighth anniversary of the beginning of the Cuban Revolution (26 July), President Osvaldo Dorticos of Cuba presented him with the first Order of Playa Girón , a newly created medal. Gagarin

12096-705: The crash were conducted separately by the Air Force, official government commissions, and the KGB . According to a biography of Gagarin by Jamie Doran and Piers Bizony , Starman: The Truth Behind the Legend of Yuri Gagarin , the KGB worked "not just alongside the Air Force and the official commission members but against them." The KGB's report, declassified in March 2003, claimed that the actions of airbase personnel contributed to

12240-416: The crash. The report states that an air-traffic controller provided Gagarin with outdated weather information and that by the time of his flight, conditions had deteriorated significantly. Ground crew also left external fuel tanks attached to the aircraft. Gagarin's planned flight activities needed clear weather and no outboard tanks. The investigation concluded Gagarin's aircraft entered a spin , either due to

12384-474: The crew incapable of controlling the aircraft. A similar theory, published in Air & Space/Smithsonian magazine, is that the crew detected the open vent and followed procedure by executing a rapid dive to a lower altitude. This dive caused them to lose consciousness and crash. On 12 April 2007, the Kremlin vetoed a new investigation into the death of Gagarin. Government officials said they saw no reason to begin

12528-450: The definition of outer space, the atmospheric density inside low-Earth orbital space, the first few hundred kilometers above the Kármán line, is still sufficient to produce significant drag on satellites. Geospace is a region of space that includes Earth's upper atmosphere and magnetosphere . The Van Allen radiation belts lie within the geospace. The outer boundary of geospace is the magnetopause , which forms an interface between

12672-662: The deputy training director of the Cosmonaut Training Centre , which was later named after him. He was also elected as a deputy of the Soviet of the Union in 1962 and then to the Soviet of Nationalities , respectively the lower and upper chambers of the Supreme Soviet . Vostok 1 was Gagarin's only spaceflight, but he served as the backup crew to Soyuz 1 , which ended in a fatal crash, killing his friend and fellow cosmonaut Vladimir Komarov . Fearful that

12816-422: The direction and speed of ions in the atmosphere were made from a sounding rocket . The altitude of 118 km (73.3 mi) above Earth was the midpoint for charged particles transitioning from the gentle winds of the Earth's atmosphere to the more extreme flows of outer space. The latter can reach velocities well over 268 m/s (880 ft/s). Spacecraft have entered into a highly elliptical orbit with

12960-456: The drafting of UN resolutions for the peaceful uses of outer space, anti-satellite weapons have been tested in Earth orbit . The concept that the space between the Earth and the Moon must be a vacuum was first proposed in the 17th century after scientists discovered that air pressure decreased with altitude. The immense scale of outer space was grasped in the 20th century when the distance to

13104-436: The eyes, nervous system , lungs and the gastrointestinal tract . On a round-trip Mars mission lasting three years, a large fraction of the cells in an astronaut's body would be traversed and potentially damaged by high energy nuclei. The energy of such particles is significantly diminished by the shielding provided by the walls of a spacecraft and can be further diminished by water containers and other barriers. The impact of

13248-541: The family was allowed to build a mud hut measuring approximately 3 by 3 metres (10 by 10 ft), where they spent 21 months until the end of the occupation. During this period, Yuri became a saboteur, especially after one of the German soldiers, called "the Devil" by the children, tried to hang his younger brother Boris on an apple tree using the boy's scarf. In retaliation, Yuri sabotaged the soldier's work; he poured soil into

13392-485: The first successful crewed spaceflight , became the first human to journey into outer space . Travelling on Vostok 1 , Gagarin completed one orbit of Earth on 12 April 1961, with his flight taking 108 minutes. By achieving this major milestone for the Soviet Union amidst the Space Race , he became an international celebrity and was awarded many medals and titles, including his nation's highest distinction: Hero of

13536-511: The gates of Cairo . On 22 October 1963, Gagarin and Valentina Tereshkova were honoured with the Order of Karl Marx from the German Democratic Republic . The date of Gagarin's space flight, 12 April, has been commemorated. Since 1962, it has been celebrated first in the USSR and since 1991 in Russia and some other former Soviet republics as Cosmonautics Day . Since 2000, Yuri's Night , an international celebration,

13680-563: The globe published his biography and details of his flight. He was escorted in a long motorcade of high-ranking officials through the streets of Moscow to the Kremlin where, in a lavish ceremony, Nikita Khrushchev awarded him the title Hero of the Soviet Union . Other cities in the Soviet Union also held mass demonstrations, the scale of which were second only to the World War II Victory Parades . Gagarin gained

13824-485: The harsh environment, several life forms have been found that can withstand extreme space conditions for extended periods. Species of lichen carried on the ESA BIOPAN facility survived exposure for ten days in 2007. Seeds of Arabidopsis thaliana and Nicotiana tabacum germinated after being exposed to space for 1.5 years. A strain of Bacillus subtilis has survived 559 days when exposed to low Earth orbit or

13968-599: The high energy range, the flux of electrons is only about 1% of that of protons. Cosmic rays can damage electronic components and pose a health threat to space travelers. Smells produced returning from low Earth orbit extravehicular activity have a burned/metallic odor, similar to the scent of arc welding fumes, resulting from oxygen in low Earth orbit around the ISS, which clings to suits and equipment. Other regions of space could have very different smells, like that of different alcohols in molecular clouds . Despite

14112-519: The informal phrase Poyekhali! ( Поехали! , 'Off we go!') later became a popular expression in the Eastern Bloc that was used to refer to the beginning of the Space Age . The five first-stage engines fired until the first separation event, when the four side-boosters fell away, leaving the core engine. The core stage then separated while the rocket was in a suborbital trajectory, and

14256-623: The international co-operation in the peaceful uses of outer space and preventing an arms race in space. Four additional space law treaties have been negotiated and drafted by the UN's Committee on the Peaceful Uses of Outer Space . Still, there remains no legal prohibition against deploying conventional weapons in space, and anti-satellite weapons have been successfully tested by the USA, USSR, China, and in 2019, India. The 1979 Moon Treaty turned

14400-476: The interstellar medium, including the heavy elements previously formed within the star's core. The density of matter in the interstellar medium can vary considerably: the average is around 10 particles per m , but cold molecular clouds can hold 10 –10 per m . Yuri Gagarin Yuri Alekseyevich Gagarin (9 March 1934 – 27 March 1968) was a Soviet pilot and cosmonaut who, aboard

14544-415: The jet into a "super-critical flight regime and to its stalling in complex meteorological conditions". Alexei Leonov, who was also a member of a state commission established to investigate Gagarin's death, was conducting parachute training sessions that day and heard "two loud booms in the distance". He believes that a Sukhoi Su-15 was flying below its minimum altitude and, "without realizing it because of

14688-603: The jurisdiction of all heavenly bodies (including the orbits around such bodies) over to the international community. The treaty has not been ratified by any nation that currently practices human spaceflight. In 1976, eight equatorial states (Ecuador, Colombia, Brazil, The Republic of the Congo, Zaire, Uganda, Kenya, and Indonesia) met in Bogotá, Colombia: with their "Declaration of the First Meeting of Equatorial Countries", or

14832-442: The large pressure differential between inside and outside the chest. Even if the subject's airway is fully open, the flow of air through the windpipe may be too slow to prevent the rupture. Rapid decompression can rupture eardrums and sinuses, bruising and blood seep can occur in soft tissues, and shock can cause an increase in oxygen consumption that leads to hypoxia . As a consequence of rapid decompression, oxygen dissolved in

14976-420: The launch of Luna 3 on 6 October 1959, his recommendation to the Soviet space programme was endorsed and forward by Lieutenant Colonel Babushkin. By this point, he had accumulated 265 hours of flight time. Gagarin was promoted to the rank of senior lieutenant on 6 November 1959, three weeks after he was interviewed by a medical commission for qualification to the space programme. Gagarin's selection for

15120-583: The limited space in the Vostok capsule , should weigh less than 72 kg (159 lb) and be no taller than 1.70 metres (5 ft 7 in); Gagarin was 1.57 metres (5 ft 2 in) tall. From a pool of 154 qualified pilots short-listed by their Air Force units, the military physicians chose 29 cosmonaut candidates, of whom 20 were approved by the Credential Committee of the Soviet government . The first twelve, including Gagarin, were approved on 7 March 1960 and eight more were added in

15264-404: The magnetic field and particle flux from the Sun. The distance and strength of the heliopause varies depending on the activity level of the solar wind. The heliopause in turn deflects away low-energy galactic cosmic rays, with this modulation effect peaking during solar maximum. The volume of interplanetary space is a nearly total vacuum, with a mean free path of about one astronomical unit at

15408-518: The most distant high-z sources, indicating the presence of magnetic fields. Outside a protective atmosphere and magnetic field, there are few obstacles to the passage through space of energetic subatomic particles known as cosmic rays. These particles have energies ranging from about 10   eV up to an extreme 10  eV of ultra-high-energy cosmic rays . The peak flux of cosmic rays occurs at energies of about 10  eV, with approximately 87% protons, 12% helium nuclei and 1% heavier nuclei. In

15552-525: The motions of which are controlled by the Earth's magnetic field . These plasmas form a medium from which storm-like disturbances powered by the solar wind can drive electrical currents into the Earth's upper atmosphere. Geomagnetic storms can disturb two regions of geospace, the radiation belts and the ionosphere. These storms increase fluxes of energetic electrons that can permanently damage satellite electronics, interfering with shortwave radio communication and GPS location and timing. Magnetic storms can be

15696-658: The next day and was posted to the Luostari Air Base , close to the Norwegian border in Murmansk Oblast , for a two-year assignment with the Northern Fleet . He was assigned to the 769th Fighter Aviation Regiment of the 122nd Fighter Aviation Division flying Mikoyan-Gurevich MiG-15bis aircraft. By October 1959, he had flown a total of 265 hours. On 7 July 1959, he was rated Military Pilot 3rd Class. After expressing interest in space exploration following

15840-498: The next two highest-ranked cosmonauts, Titov and Nelyubov, were sent to Tyuratam for final preparations. Gagarin and Titov were selected to train in the flight-ready spacecraft on 7 April. Historian Asif Azam Siddiqi writes of the final selection: In the end, at the State Commission meeting on April 8, Kamanin stood up and formally nominated Gagarin as the primary pilot and Titov as his backup. Without much discussion,

15984-403: The orbital distance of the Earth. This space is not completely empty, and is sparsely filled with cosmic rays, which include ionized atomic nuclei and various subatomic particles. There is gas, plasma and dust, small meteors , and several dozen types of organic molecules discovered to date by microwave spectroscopy . A cloud of interplanetary dust is visible at night as a faint band called

16128-439: The remainder consists of helium atoms. This is enriched with trace amounts of heavier atoms formed through stellar nucleosynthesis . These atoms are ejected into the interstellar medium by stellar winds or when evolved stars begin to shed their outer envelopes such as during the formation of a planetary nebula . The cataclysmic explosion of a supernova propagates shock waves of stellar ejecta outward, distributing it throughout

16272-471: The rocket before launch and relayed instructions to Komarov from ground control following multiple system failures aboard the spacecraft. Despite their best efforts, Soyuz 1 crash landed after its parachutes failed to open, killing Komarov instantly. After the Soyuz 1 crash, Gagarin was permanently banned from training for and participating in further spaceflights. He was also grounded from flying aircraft solo,

16416-444: The roof of the convertible car he was riding in remain open, and stood so the cheering crowds could see him. Gagarin toured widely abroad, accepting the invitation of about 30 countries in the years following his flight. In just the first four months, he also went to Brazil, Bulgaria , Canada, Cuba, Czechoslovakia , Finland, Hungary , and Iceland. Because of his popularity, US president John F. Kennedy barred Gagarin from visiting

16560-640: The same as the partial pressure of oxygen at the Earth's surface. This pressure is high enough to prevent ebullism, but evaporation of nitrogen dissolved in the blood could still cause decompression sickness and gas embolisms if not managed. Humans evolved for life in Earth gravity , and exposure to weightlessness has been shown to have deleterious effects on human health. Initially, more than 50% of astronauts experience space motion sickness . This can cause nausea and vomiting, vertigo , headaches, lethargy , and overall malaise. The duration of space sickness varies, but it typically lasts for 1–3 days, after which

16704-530: The same year that he sang the tune "The Motherland Hears, The Motherland Knows" ( "Родина слышит, Родина знает" ) during re-entry. Gagarin was recognised as a qualified Military Pilot 1st Class and promoted to the rank of major in a special order given during his flight. At about 7,000 metres (23,000 ft), Gagarin ejected from the descending capsule as planned and landed using a parachute. There were concerns Gagarin's orbital spaceflight records for duration, altitude and lifted mass would not be recognized by

16848-598: The seventh grade and the vocational school with honours in mouldmaking and foundry work, he was selected for further training at the Industrial Technical School in Saratov , where he studied tractors. While in Saratov, Gagarin volunteered at a local flying club for weekend training as a Soviet air cadet, where he trained to fly a biplane , and later a Yakovlev Yak-18 . He earned extra money as

16992-569: The small Fallen Astronaut sculpture at their landing site as a memorial to the American astronauts and Soviet cosmonauts who died in the Space Race ; the names on its plaque included Yuri Gagarin and 14 others. In 1970, a 262 km (163-mile) wide crater on the far side was named after him. Gagarin was inducted as a member of the 1976 inaugural class of the International Space Hall of Fame in New Mexico . Gagarin

17136-473: The solar wind and other sources, creating belts of charged particles such as the Van Allen radiation belts. Planets without magnetic fields, such as Mars, have their atmospheres gradually eroded by the solar wind. Interstellar space is the physical space outside of the bubbles of plasma known as astrospheres , formed by stellar winds originating from individual stars, or formed by solar wind emanating from

17280-625: The space around just about every class of celestial object. Star formation in spiral galaxies can generate small-scale dynamos , creating turbulent magnetic field strengths of around 5–10 μ G . The Davis–Greenstein effect causes elongated dust grains to align themselves with a galaxy's magnetic field, resulting in weak optical polarization . This has been used to show ordered magnetic fields that exist in several nearby galaxies. Magneto-hydrodynamic processes in active elliptical galaxies produce their characteristic jets and radio lobes . Non-thermal radio sources have been detected even among

17424-409: The starting point of deep-space from, "That which lies beyond the orbit of the moon," to "That which lies beyond the farthest reaches of the Solar System itself." The International Telecommunication Union responsible for radio communication , including with satellites, defines deep-space as, "distances from the Earth equal to, or greater than, 2 million km (1.2 million mi)," which

17568-526: The tank batteries gathered to be recharged and randomly mixed the different chemical supplies intended for the task. In early 1943, his two older siblings were deported by the Germans to Poland for slave labour . They escaped and were found by Soviet soldiers who conscripted them into helping with the war effort. They did not return home until after the war, in 1945. The rest of the Gagarin family believed

17712-461: The terrible weather conditions, he passed within 10 or 20 meters (33 or 66 ft) of Yuri and Seregin's plane while breaking the sound barrier". The resulting turbulence would have sent the MiG-15UTI into an uncontrolled spin. Leonov said the first boom he heard was that of the jet breaking the sound barrier and the second was Gagarin's plane crashing. On 14 April 1961, Gagarin was honoured with

17856-407: The throat and lungs boil away. More specifically, exposed bodily liquids such as saliva, tears, and liquids in the lungs boil away. Hence, at this altitude, human survival requires a pressure suit, or a pressurized capsule. Out in space, sudden exposure of an unprotected human to very low pressure , such as during a rapid decompression, can cause pulmonary barotrauma —a rupture of the lungs, due to

18000-526: The time Yuri was born he was already helping with the cattle on the farm. His sister Zoya, born in 1927, helped take care of "Yura" and their youngest brother Boris, born in 1936. Like millions of Soviet citizens, his family suffered during the German occupation during World War II . During the German advance on Moscow , retreating Red Army soldiers seized the collective farm's livestock. The Nazis captured Klushino on 18 October 1941. On their first day in

18144-490: The title of pilot-cosmonaut in January 1961 and underwent a two-day examination conducted by a special interdepartmental commission led by Lieutenant-General Nikolai Kamanin , the overseer of the Vostok programme. The commission was tasked with ranking the candidates based on their mission readiness for the first human Vostok mission. On 17 January, they were tested in a simulator at the M. M. Gromov Flight-Research Institute on

18288-630: The training centre, Colonel Vladimir Ivanovich Yazdovskiy, the head physician for Gagarin's flight, and Major-General Aleksandr Nikolayevich Babiychuk, a physician flag officer on the Soviet Air Force General Staff to the Commander in Chief of the Air Force . The commission limited their selection to pilots between 25 and 30 years old. The chief engineer of the programme Sergei Korolev also specified that candidates, to fit in

18432-407: The two older children were dead, and Yuri became ill with "grief and hunger"; he was also beaten for refusing to work for the German forces and spent the remainder of the war at a hospital as a patient and later as an orderly. His mother was hospitalized during the same period, after a German soldier gashed her leg with a scythe. When the Germans were routed out of Klushino on 9 March 1944, Yuri helped

18576-427: The universe and the accelerating expansion of the universe , indicates that space has a non-zero vacuum energy , which is called dark energy . Estimates put the average energy density of the present day universe at the equivalent of 5.9 protons per cubic meter, including dark energy, dark matter, and baryonic matter (ordinary matter composed of atoms). The atoms account for only 4.6% of the total energy density, or

18720-601: The upcoming flight by experiencing g-forces in a centrifuge. Psychological tests included placing the candidates in an anechoic chamber in complete isolation; Gagarin was in the chamber from 26 July to 5 August. In August 1960, a Soviet Air Force doctor evaluated his personality as follows: Modest; embarrasses when his humour gets a little too racy; high degree of intellectual development evident in Yuriy; fantastic memory; distinguishes himself from his colleagues by his sharp and far-ranging sense of attention to his surroundings;

18864-575: The upper stage carried it to orbit. Once the upper stage finished firing, it separated from the spacecraft, which orbited for 108 minutes before returning to Earth in Kazakhstan. Gagarin became the first human to orbit the Earth. "The feeling of weightlessness was somewhat unfamiliar compared with Earth conditions. Here, you feel as if you were hanging in a horizontal position in straps. You feel as if you are suspended", Gagarin wrote in his post-flight report. He also wrote in his autobiography released

19008-483: The use of full term "outer space", with the earliest recorded use of this meaning in an epic poem by John Milton called Paradise Lost , published in 1667. The term outward space existed in a poem from 1842 by the English poet Lady Emmeline Stuart-Wortley called "The Maiden of Moscow", but in astronomy the term outer space found its application for the first time in 1845 by Alexander von Humboldt . The term

19152-559: The verbatim record of his conversations with Earth stations during the spaceflight. In a 2006 interview, Gagarin's friend Colonel Valentin Petrov stated that Gagarin never said these words and that the quote originated from Khrushchev's speech at the plenum of the Central Committee of the CPSU about the state's anti-religion campaign , saying "Gagarin flew into space, but didn't see any god there". Petrov also said Gagarin had been baptised into

19296-455: The village, they burned down the school, ending Yuri's first year of education. The Germans also burned down 27 houses in the village and forced the residents including the Gagarins to work the farms to feed the occupying soldiers. Those who refused were beaten or sent to the concentration camp set up at Gzhatsk. A Nazi officer took over the Gagarin residence. On the land behind their house,

19440-399: The volume of the universe , but even galaxies and star systems consist almost entirely of empty space. Most of the remaining mass-energy in the observable universe is made up of an unknown form, dubbed dark matter and dark energy . Outer space does not begin at a definite altitude above Earth's surface. The Kármán line , an altitude of 100 km (62 mi) above sea level ,

19584-413: Was a candidate favoured by his peers; when they were asked to vote anonymously for a candidate besides themselves they would like to be the first to fly, all but three chose Gagarin. One of these candidates, Yevgeny Khrunov , believed that Gagarin was very focused and was demanding of himself and others when necessary. On 30 May 1960, Gagarin was further selected for an accelerated training group, known as

19728-882: Was also awarded the 1960 Gold Air Medal and the 1961 De la Vaulx Medal from the Fédération Aéronautique Internationale in Switzerland. He received numerous awards from other nations that year, including the Star of the Republic of Indonesia (2nd Class), the Order of the Cross of Grunwald (1st Degree) in Poland , the Order of the Flag of the People's Republic of Hungary (1st Class with diamonds),

19872-523: Was also part of a group of children that built model aeroplanes. He was fascinated with aircraft from a young age and his interest in aeroplanes was energized after a Yakovlev fighter plane crash landed in Klushino during the war. In 1950, aged 16, Gagarin began an apprenticeship as a foundryman at a steel plant in Lyubertsy , near Moscow, and enrolled at a local "young workers" school for seventh-grade evening classes. After graduating in 1951 from both

20016-576: Was born 9 March 1934 in the village of Klushino , in the Smolensk Oblast of the Russian Soviet Federative Socialist Republic , near Gzhatsk (renamed Gagarin in 1968 after his death). His parents worked on a sovkhoz —Aleksey Ivanovich Gagarin as a carpenter and Anna Timofeyevna Gagarina as a dairy farmer . Yuri was the third of four children. His older brother Valentin was born in 1924, and by

20160-484: Was built in 1971 and the Armenian airline Armavia named their first Sukhoi Superjet 100 in his honour in 2011. Two commemorative coins were issued in the Soviet Union to honour the 20th and 30th anniversaries of his flight: a one-rouble coin in copper-nickel (1981) and a three-rouble coin in silver (1991). In 2001, to commemorate the 40th anniversary of Gagarin's flight, a series of four coins bearing his likeness

20304-457: Was eventually popularized through the writings of H. G. Wells after 1901. Theodore von Kármán used the term of free space to name the space of altitudes above Earth where spacecrafts reach conditions sufficiently free from atmospheric drag, differentiating it from airspace , identifying a legal space above territories free from the sovereign jurisdiction of countries. " Spaceborne " denotes existing in outer space, especially if carried by

20448-498: Was issued in Russia; it consisted of a two-rouble coin in copper-nickel, a three-rouble coin in silver, a ten-rouble coin in brass-copper and nickel, and a 100-rouble coin in silver. In 2011, Russia issued a 1,000-rouble coin in gold and a three-rouble coin in silver to mark the 50th anniversary of his flight. In 2008, the Russia-based Kontinental Hockey League named their championship trophy

20592-583: Was opened. The monument is mounted to a 38 m (125 ft) tall pedestal and is constructed of titanium. Beside the column is a replica of the descent module used during his spaceflight. In 2011, a statue of Gagarin was unveiled at Admiralty Arch in The Mall in London, opposite the permanent sculpture of James Cook . It is a copy of the statue outside Gagarin's former school in Lyubertsy. In 2013,

20736-555: Was passed by the United Nations General Assembly in 1963 and signed in 1967 by the Union of Soviet Socialist Republics (USSR), the United States of America (USA), and the United Kingdom (UK). As of 2017, 105 state parties have either ratified or acceded to the treaty. An additional 25 states signed the treaty, without ratifying it. Since 1958, outer space has been the subject of multiple United Nations resolutions. Of these, more than 50 have been concerning

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