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128-617: Private spaceflight refers to spaceflight developments that are not conducted by a government agency , such as NASA or ESA . During the early decades of the Space Age , the government space agencies of the Soviet Union and United States pioneered space technology in collaboration with affiliated design bureaus in the USSR and private companies in the US. They entirely funded both

256-421: A spaceport (cosmodrome), which may be equipped with launch complexes and launch pads for vertical rocket launches and runways for takeoff and landing of carrier airplanes and winged spacecraft. Spaceports are situated well away from human habitation for noise and safety reasons. ICBMs have various special launching facilities. A launch is often restricted to certain launch windows . These windows depend upon

384-496: A sub-orbital spaceflight the spacecraft reaches space and then returns to the atmosphere after following a (primarily) ballistic trajectory. This is usually because of insufficient specific orbital energy , in which case a suborbital flight will last only a few minutes, but it is also possible for an object with enough energy for an orbit to have a trajectory that intersects the Earth's atmosphere, sometimes after many hours. Pioneer 1

512-512: A "time buffer" and substantially widened the allowable launch windows . The parking orbit gave the crew and controllers time to thoroughly check out the spacecraft after the stresses of launch before committing it for a long journey to the Moon. Robotic missions do not require an abort capability and require radiation minimalization only for delicate electronics, and because modern launchers routinely meet "instantaneous" launch windows, space probes to

640-425: A commercial entity. The history of full private space transportation includes early efforts by German company OTRAG in the 20th century. Founded in 1975 as the first private company to attempt to launch a private spacecraft, testing of its OTRAG rocket began in 1977. The history also covers numerous modern orbital and suborbital launch systems in the 21st century. More recent commercial spaceflight projects include

768-507: A component of US space law for over 25 years, and during this time, "has never been invoked in any commercial launch mishap". In 1992, a Resurs-500 capsule containing gifts was launched from Plesetsk Cosmodrome in a private spaceflight called Europe-America 500 . The flight was conceived by the Russian Foundation for Social Inventions and TsSKB-Progress , a Russian rocket-building company, to increase trade between Russia and

896-579: A consequence its citizens became eligible to apply to the 2022 ESA Astronaut group , applications for which were scheduled to close one week later. The deadline was therefore extended by three weeks to allow Lithuanians a fair chance to apply. Slovakia's Associate membership came into effect on 13 October 2022, for an initial duration of seven years. The Association Agreement supersedes the European Cooperating State (ECS) Agreement, which entered into force upon Slovakia's subscription to

1024-443: A counter measure to United States bomber planes in the 1950s. The Tsiolkovsky-influenced Sergey Korolev became the chief rocket designer, and derivatives of his R-7 Semyorka missiles were used to launch the world's first artificial Earth satellite , Sputnik 1 , on October 4, 1957. The U.S., after the launch of Sputnik and two embarrassing failures of Vanguard rockets , launched Explorer 1 on February 1, 1958. Three years later,

1152-547: A few hundred dollars per kilogram as the technology of a second private spaceflight startup of ~2000 comes into service. The first privately funded rocket to reach the boundary of space, the Kármán line , (although not orbit) was Conestoga I , which was launched by Space Services Inc. on a suborbital flight to 309 kilometres (192 mi) altitude on 9 September 1982. In October 1995, their first (and only) attempt at an orbital launch, Conestoga 1620, failed to achieve orbit due to

1280-416: A flight that normally lasts over twenty hours , could be traversed in less than one hour. While no company offers this type of transportation today, SpaceX has revealed plans to do so as early as the 2020s using Starship . Suborbital spaceflight over an intercontinental distance requires a vehicle velocity that is only a little lower than the velocity required to reach low Earth orbit. If rockets are used,

1408-458: A full member of the ESA do so in 3 stages. First a Cooperation Agreement is signed between the country and ESA. In this stage, the country has very limited financial responsibilities. If a country wants to co-operate more fully with ESA, it signs a European Cooperating State (ECS) Agreement, albeit to be a candidate for said agreement, a country must be European. The ECS Agreement makes companies based in

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1536-603: A full member of the ESA on 1 January 2025, when the current Association Agreement expires. Latvia became the second current associated member on 30 June 2020, when the Association Agreement was signed by ESA Director Jan Wörner and the Minister of Education and Science of Latvia , Ilga Šuplinska in Riga . The Saeima ratified it on 27 July. In May 2021, Lithuania became the third current associated member. As

1664-491: A guidance system failure. On April 5, 1990, Orbital Sciences Corporation 's Pegasus , an air launched rocket, was the first launch vehicle fully developed by a private company to reach orbit. In the early 2000s, several public-private corporate partnerships were established in the United States to privately develop spaceflight technology. Several purely private initiatives have shown interest in private endeavors to

1792-399: A launch tower and flame trench. It is surrounded by equipment used to erect, fuel, and maintain launch vehicles. Before launch, the rocket can weigh hundreds of tons. The Space Shuttle Columbia , on STS-1 , weighed 2030 metric tons (4,480,000 lb) at takeoff. The most commonly used definition of outer space is everything beyond the Kármán line , which is 100 kilometers (62 mi) above

1920-595: A liquid-fueled rocket on March 16, 1926. During World War II , the first guided rocket, the V-2 , was developed and employed as a weapon by Nazi Germany . During a test flight in June 1944, one such rocket reached space at an altitude of 189 kilometers (102 nautical miles), becoming the first human-made object to reach space. At the end of World War II, most of the V-2 rocket team, including its head, Wernher von Braun , surrendered to

2048-736: A major spaceport , the Guiana Space Centre at Kourou ( French Guiana ), France. The main European launch vehicle Ariane 6 will be operated through Arianespace with the ESA sharing in the costs of launching and further developing this launch vehicle. The agency is also working with NASA to manufacture the Orion spacecraft service module that flies on the Space Launch System . After World War II , many European scientists left Western Europe in order to work with

2176-416: A mission between NASA , SpaceX , and Intuitive Machines . This event marked the first successful landing of a privately owned spacecraft on the Moon and the United States' first lunar landing in over 50 years and the first lander to do so with cryogenic propellants . Today many commercial space transportation companies offer launch services to satellite companies and government space organizations around

2304-581: A new clause to NASA's mission statement : Yet one of NASA's early actions was to effectively prevent private space flight through a large amount of regulation. From the beginning, though, this met significant opposition not only by the private sector, but in Congress. In 1962, Congress passed its first law pushing back the prohibition on private involvement in space, the Communications Satellite Act of 1962 . While largely focusing on

2432-819: A policy of "georeturn", where funds that ESA member states provide to the ESA "are returned in the form of contracts to companies in those countries." By 2015, the ESA was an intergovernmental organisation of 22 member states. The 2008 ESA budget amounted to €3.0 billion whilst the 2009 budget amounted to €3.6 billion. The total budget amounted to about €3.7 billion in 2010, €3.99 billion in 2011, €4.02 billion in 2012, €4.28 billion in 2013, €4.10 billion in 2014, €4.43 billion in 2015, €5.25 billion in 2016, €5.75 billion in 2017, €5.60 billion in 2018, €5.72 billion in 2019, €6,68 billion in 2020, €6.49 billion in 2021, €7.15 billion in 2022, €7.46 billion in 2023 and €7.79 billion in 2024. English and French are

2560-611: A pre-programmed list of operations that will be executed unless otherwise instructed. A robotic spacecraft for scientific measurements is often called a space probe or space observatory . Many space missions are more suited to telerobotic rather than crewed operation, due to lower cost and risk factors. In addition, some planetary destinations such as Venus or the vicinity of Jupiter are too hostile for human survival, given current technology. Outer planets such as Saturn , Uranus , and Neptune are too distant to reach with current crewed spaceflight technology, so telerobotic probes are

2688-565: A private company had begun transporting cargo to and from the International Space Station , while a second private company was scheduled to begin making deliveries in 2013, ushering in a time of regular private space cargo delivery to and return from the government-owned space facility in low Earth orbit (LEO). In this new paradigm for LEO cargo transport, the government contracts for and pays for cargo services on substantially privately developed space vehicles rather than

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2816-727: A private flight to the Moon, from the FAA's Office of Commercial Space Transportation. On 30 May 2020, Crew Dragon Demo-2 operated by SpaceX became the first crewed mission to the International Space Station in the Commercial Crew Program . After 2015, European-based private small-lift launch vehicle development got underway, particularly in Germany, Italy, and the United Kingdom, but "France has largely been left out of this new commercial launch industry". In 2021,

2944-484: A provision ensuring a fair industrial return to Canada. The most recent Cooperation Agreement was signed on 15 December 2010 with a term extending to 2020. For 2014, Canada's annual assessed contribution to the ESA general budget was €6,059,449 ( CAD$ 8,559,050). For 2017, Canada has increased its annual contribution to €21,600,000 ( CAD$ 30,000,000). The ESA is funded from annual contributions by national governments of members as well as from an annual contribution by

3072-470: A staff of around 2,547 people globally as of 2023, the ESA was founded in 1975. Its 2024 annual budget was €7.8 billion. The ESA's space flight programme includes human spaceflight (mainly through participation in the International Space Station program); the launch and operation of crewless exploration missions to other planets (such as Mars ) and the Moon; Earth observation, science and telecommunication; designing launch vehicles ; and maintaining

3200-738: A star-mapping mission, was launched in 1989 and in the 1990s SOHO , Ulysses and the Hubble Space Telescope were all jointly carried out with NASA. Later scientific missions in cooperation with NASA include the Cassini–Huygens space probe, to which the ESA contributed by building the Titan landing module Huygens . As the successor of ELDO , the ESA has also constructed rockets for scientific and commercial payloads. Ariane 1 , launched in 1979, carried mostly commercial payloads into orbit from 1984 onward. The next two versions of

3328-715: A while already and which gives effect to these. Thanks Jan for your hand of friendship and making this possible." The ESA currently has two operational launch vehicles Vega-C and Ariane 6 . Rocket launches are carried out by Arianespace , which has 23 shareholders representing the industry that manufactures the Ariane 5 as well as CNES , at the ESA's Guiana Space Centre . Because many communication satellites have equatorial orbits, launches from French Guiana are able to take larger payloads into space than from spaceports at higher latitudes . In addition, equatorial launches give spacecraft an extra 'push' of nearly 500 m/s due to

3456-461: Is at an advanced stage" with these nations and that "prospects for mutual benefits are existing". A separate space exploration strategy resolution calls for further co-operation with the United States, Russia and China on " LEO exploration, including a continuation of ISS cooperation and the development of a robust plan for the coordinated use of space transportation vehicles and systems for exploration purposes, participation in robotic missions for

3584-576: Is capable of carrying a payload with a mass of between 300 and 1500 kg to an altitude of 700 km, for low polar orbit . Its maiden launch from Kourou was on 13 February 2012. Vega began full commercial exploitation in December 2015. The rocket has three solid propulsion stages and a liquid propulsion upper stage (the AVUM ) for accurate orbital insertion and the ability to place multiple payloads into different orbits. A larger version of

3712-491: Is done by a set of orbital maneuvers called space rendezvous . After rendezvousing with the space station, the space vehicle then docks or berths with the station. Docking refers to joining of two separate free-flying space vehicles, while berthing refers to mating operations where an inactive vehicle is placed into the mating interface of another space vehicle by using a robotic arm . Vehicles in orbit have large amounts of kinetic energy. This energy must be discarded if

3840-887: Is effective mainly because of its ability to sustain thrust even as the atmosphere thins. Many ways to reach space other than rocket engines have been proposed. Ideas such as the space elevator , and momentum exchange tethers like rotovators or skyhooks require new materials much stronger than any currently known. Electromagnetic launchers such as launch loops might be feasible with current technology. Other ideas include rocket-assisted aircraft/spaceplanes such as Reaction Engines Skylon (currently in early stage development), scramjet powered spaceplanes, and RBCC powered spaceplanes. Gun launch has been proposed for cargo. On some missions beyond LEO (Low Earth Orbit) , spacecraft are inserted into parking orbits, or lower intermediary orbits. The parking orbit approach greatly simplified Apollo mission planning in several important ways. It acted as

3968-618: Is flaring back into life, and it's not massive institutions such as NASA that are in the running. The old view that human space flight is so complex, difficult and expensive that only huge government agencies could hope to accomplish it is being disproved by a new breed of flamboyant space privateers, who are planning to send humans out beyond the Earth's orbit for the first time since 1972," particularly noting projects underway by Mars One , Inspiration Mars Foundation , Bigelow Aerospace and SpaceX . The Commercial Space Launch Act of 1984 required encouragement of commercial space ventures, adding

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4096-586: Is impossible. To date several academics have studied intergalactic travel in a serious manner. Spacecraft are vehicles designed to operate in space. The first 'true spacecraft' is sometimes said to be Apollo Lunar Module , since this was the only crewed vehicle to have been designed for, and operated only in space; and is notable for its non-aerodynamic shape. Spacecraft today predominantly use rockets for propulsion , but other propulsion techniques such as ion drives are becoming more common, particularly for uncrewed vehicles, and this can significantly reduce

4224-541: Is known as Kessler syndrome . There are several terms that refer to a flight into or through outer space . A space mission refers to a spaceflight intended to achieve an objective. Objectives for space missions may include space exploration , space research , and national firsts in spaceflight. Space transport is the use of spacecraft to transport people or cargo into or through outer space. This may include human spaceflight and cargo spacecraft flight. The first theoretical proposal of space travel using rockets

4352-656: Is marketed via Starsem . The Sea Launch project flew the Ukrainian Zenit rocket . In 2003, Arianespace joined with Boeing Launch Services and Mitsubishi Heavy Industries to create the Launch Services Alliance . In 2005, continued weak commercial demand for EELV launches drove Lockheed Martin and Boeing to propose a joint venture called the United Launch Alliance to service the United States government launch market. Since

4480-647: Is more fuel-efficient for a craft to burn its fuel as close as possible to its periapsis (lowest point); see Oberth effect . Astrodynamics is the study of spacecraft trajectories, particularly as they relate to gravitational and propulsion effects. Astrodynamics allows for a spacecraft to arrive at its destination at the correct time without excessive propellant use. An orbital maneuvering system may be needed to maintain or change orbits. Non-rocket orbital propulsion methods include solar sails , magnetic sails , plasma-bubble magnetic systems , and using gravitational slingshot effects. The term "transfer energy" means

4608-455: Is not generally recognized by the public that the increase in potential energy required to pass the Kármán line is only about 3% of the orbital energy (potential plus kinetic energy) required by the lowest possible Earth orbit (a circular orbit just above the Kármán line.) In other words, it is far easier to reach space than to stay there. On May 17, 2004, Civilian Space eXploration Team launched

4736-650: Is the fifth spacecraft put on an escape trajectory leaving the Solar System . Voyager 1 , Voyager 2 , Pioneer 10 , Pioneer 11 are the earlier ones. The one farthest from the Sun is Voyager 1 , which is more than 100 AU distant and is moving at 3.6 AU per year. In comparison, Proxima Centauri , the closest star other than the Sun, is 267,000 AU distant. It will take Voyager 1 over 74,000 years to reach this distance. Vehicle designs using other techniques, such as nuclear pulse propulsion are likely to be able to reach

4864-600: The Ariane 6 , is under development and had a successful long-firing engine test in November 2023. The ESA plans for the Ariane 6 to launch in June or July 2024. The beginning of the new millennium saw the ESA become, along with agencies like NASA, JAXA , ISRO , the CSA and Roscosmos , one of the major participants in scientific space research . Although the ESA had relied on co-operation with NASA in previous decades, especially

4992-576: The Commercial Space Launch Act . This enabled an American industry of private operators of expendable launch systems . Prior to the signing of this law, all commercial satellite launches in the United States were restricted by Federal regulation to NASA's Space Shuttle . On 11 February 1988, the Presidential Directive declared that the government should purchase commercially available space goods and services to

5120-742: The Delta IV and Atlas V EELVs remain in active service. Commercial launches outnumbered government launches at the Eastern Range in 1997. The Commercial Space Act was passed in 1998 and implements many of the provisions of the Launch Services Purchase Act of 1990 . Nonetheless, until 2004 NASA kept private space flight effectively illegal. But that year, the Commercial Space Launch Amendments Act of 2004 required that NASA and

5248-462: The European Union (EU). The budget of the ESA was €5.250 billion in 2016. Every 3–4 years, ESA member states agree on a budget plan for several years at an ESA member states conference. This plan can be amended in future years, however provides the major guideline for the ESA for several years. The 2016 budget allocations for major areas of the ESA activity are shown in the chart on

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5376-513: The Federal Aviation Administration legalise private space flight. The 2004 Act also specified a "learning period" which restricted the ability of the FAA to enact regulations regarding the safety of people who might actually fly on commercial spacecraft through 2012, ostensibly because spaceflight participants would share the risk of flight through informed consent procedures of human spaceflight risks, while requiring

5504-458: The Government of France announced a plan to fund the "France-based rocket firm ArianeGroup to develop a new small-lift rocket called Maïa by the year 2026," which would be a government-funded but commercially developed rocket. On 22 February 2024, Intuitive Machine's private Odysseus successfully landed on the Moon after taking off on a SpaceX Falcon 9 liftoff on 15 February 2024 in

5632-473: The ISS partnership. The ESA maintains its scientific and research projects mainly for astronomy-space missions such as Corot , launched on 27 December 2006, a milestone in the search for exoplanets . On 21 January 2019, ArianeGroup and Arianespace announced a one-year contract with the ESA to study and prepare for a mission to mine the Moon for lunar regolith . In 2021 the ESA ministerial council agreed to

5760-484: The Tsiolkovsky rocket equation , can be used to find the total Δ v {\displaystyle \Delta v} , or potential change in velocity. This formula, which is still used by engineers, is a key concept of spaceflight. Spaceflight became a practical possibility with the work of Robert H. Goddard 's publication in 1919 of his paper A Method of Reaching Extreme Altitudes . His application of

5888-451: The U.S. civilian space program and Soviet space program were operated using mainly military pilots as astronauts . During this period, no commercial space launches were available to private operators, and no private organization was able to offer space launches. Eventually, private organizations were able to both offer and purchase space launches, thus beginning the period of private spaceflight. The first phase of private space operation

6016-461: The USSR made one orbit around the Earth. In official Soviet documents, there is no mention of the fact that Gagarin parachuted the final seven miles. As of 2020, the only spacecraft regularly used for human spaceflight are Soyuz , Shenzhou , and Crew Dragon . The U.S. Space Shuttle fleet operated from April 1981 until July 2011. SpaceShipOne has conducted three human suborbital space flights. On

6144-457: The de Laval nozzle to liquid-fuel rockets improved efficiency enough for interplanetary travel to become possible. After further research, Goddard attempted to secure an Army contract for a rocket-propelled weapon in the first World War but his plans were foiled by the November 11, 1918 armistice with Germany . After choosing to work with private financial support, he was the first to launch

6272-542: The inner Solar System . In 2006, NASA initiated a program to purchase commercial space transport to carry cargo to the International Space Station , while funding a portion of the development of new technology in a public-private partnership . In May 2015, the Japanese legislature considered legislation to allow private company spaceflight initiatives in Japan. In 2016, the United States granted its first clearance for

6400-452: The " Matosinhos manifesto" which set three priority areas (referred to as accelerators ) "space for a green future, a rapid and resilient crisis response, and the protection of space assets", and two further high visibility projects (referred to as inspirators ) an icy moon sample return mission; and human space exploration. In the same year the recruitment process began for the 2022 European Space Agency Astronaut Group . 1 July 2023 saw

6528-413: The 1980s, various private initiatives have started up to pursue the private use of space . Traditional costs to launch anything to space have been high—on the order of tens of thousands of US dollars per kilogram—but by 2020, costs on the order of a few thousand dollars per kilogram are being seen from one private launch provider that was an early 2000s startup, with the cost projected to fall to less than

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6656-565: The 1990s, changed circumstances (such as tough legal restrictions on information sharing by the United States military ) led to decisions to rely more on itself and on co-operation with Russia. A 2011 press issue thus stated: Russia is ESA's first partner in its efforts to ensure long-term access to space. There is a framework agreement between ESA and the government of the Russian Federation on cooperation and partnership in

6784-817: The 1990s–2000s. From 2000 through the end of 2015, a total of US$ 13.3 billion of investment finance was invested in the space sector, with US$ 2.9 billion of that being venture capital . In 2015, venture capital firms invested US$ 1.8 billion in private spaceflight companies, more than they had in the previous 15 years combined. As of October 2015, the largest and most active investors in space were Lux Capital , Bessemer Venture Partners , Khosla Ventures , Founders Fund , RRE Ventures and Draper Fisher Jurvetson . Increasing interest by investors in economically driven spaceflight had begun to appear by 2016, and some space ventures had to turn away investor funding. CBInsights in August 2016 published that funding to space startups

6912-486: The Ariane rocket were intermediate stages in the development of a more advanced launch system, the Ariane 4 , which operated between 1988 and 2003 and established the ESA as the world leader in commercial space launches in the 1990s. Although the succeeding Ariane 5 experienced a failure on its first flight, it has since firmly established itself within the heavily competitive commercial space launch market with 112 successful launches until 2021. The successor launch vehicle,

7040-511: The ESA as full members. Since October 2022 there have been five associate members: Slovenia, Latvia, Lithuania, Slovakia and Canada. The four European members have shown interest in full membership and may eventually apply within the next years. Since 2016, Slovenia has been an associated member of the ESA. In November 2023 Slovenia formally applied for full membership. In June 2024 Prime Minister Robert Golob and Director General Josef Aschbacher have signed an agreement that will see Slovenia become

7168-427: The ESA is an international organization, unaffiliated with any single nation, any form of legal action is difficult to raise against the organization. Member states participate to varying degrees with both mandatory space programs and those that are optional. As of 2008 , the mandatory programmes made up 25% of total expenditures while optional space programmes were the other 75%. The ESA has traditionally implemented

7296-554: The ESA is not the only European governmental space organisation (for example European Union Satellite Centre and the European Union Space Programme Agency ). After the decision of the ESA Council of 21/22 March 2001, the procedure for accession of the European states was detailed as described the document titled "The Plan for European Co-operating States (PECS)". Nations that want to become

7424-457: The ESA's documents, the staff can receive myriad of perks, such as financial childcare support, retirement plans, and financial help when migrating. The ESA also prevents employees from disclosing any private documents or correspondences to outside parties. Ars Technica ' s 2023 report, which contained testimonies of 18 people, suggested that there is a widespread harassment between management and its employees, especially with its contractors. Since

7552-403: The Earth's surface. (The United States defines outer space as everything beyond 50 miles (80 km) in altitude.) Rocket engines remain the only currently practical means of reaching space, with planes and high-altitude balloons failing due to lack of atmosphere and alternatives such as space elevators not yet being built. Chemical propulsion, or the acceleration of gases at high velocities,

7680-579: The European Space Agency reads: The purpose of the Agency shall be to provide for and to promote, for exclusively peaceful purposes, cooperation among European States in space research and technology and their space applications, with a view to their being used for scientific purposes and for operational space applications systems… The ESA is responsible for setting a unified space and related industrial policy, recommending space objectives to

7808-697: The Gemini program ended just before the Apollo 1 tragedy. Following multiple uncrewed test flights of the Saturn 1B and the Saturn V , the U.S. launched the crewed Apollo 7 mission into low earth orbit . Shortly after its successful completion, the U.S. launched Apollo 8 (first mission to orbit the moon), Apollo 9 (first Apollo mission to launch with both the CSM and the LEM ) and Apollo 10 (first mission to nearly land on

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7936-459: The GoFast rocket on a suborbital flight, the first amateur spaceflight. On June 21, 2004, SpaceShipOne was used for the first privately funded human spaceflight . Point-to-point, or Earth to Earth transportation, is a category of sub-orbital spaceflight in which a spacecraft provides rapid transport between two terrestrial locations. A conventional airline route between London and Sydney ,

8064-490: The International Space Station to commercial space ventures. Spaceflight Spaceflights include the launches of Earth observation and telecommunications satellites, interplanetary missions , the rendezvouses and dockings with space stations , and crewed spaceflights on scientific or tourist missions. Spaceflight can be achieved conventionally via multistage rockets , which provide

8192-400: The Moon . Two private orbital habitat prototypes are already in Earth orbit, with larger versions to follow. Planned private spaceflights beyond Earth orbit include solar sailing prototypes ( LightSail-3 ). During the principal period of spaceflight in the mid-twentieth century, only nation states developed and flew spacecraft above the Kármán line , the nominal boundary of space. Both

8320-459: The Moon and developed continuous crewed human presence in space with a series of space stations , ranging from the Salyut program to the International Space Station . Rockets are the only means currently capable of reaching orbit or beyond. Other non-rocket spacelaunch technologies have yet to be built, or remain short of orbital speeds. A rocket launch for a spaceflight usually starts from

8448-423: The Moon and other planets generally use direct injection to maximize performance by limiting the boil off of cryogenic propellants . Although some might coast briefly during the launch sequence, they do not complete one or more full parking orbits before the burn that injects them onto an Earth escape trajectory. The escape velocity from a celestial body decreases as the distance from the body increases. However, it

8576-603: The Netherlands , Spain , Sweden , Switzerland , and the United Kingdom . These signed the ESA Convention in 1975 and deposited the instruments of ratification by 1980, when the convention came into force. During this interval the agency functioned in a de facto fashion. The ESA launched its first major scientific mission in 1975, Cos-B , a space probe monitoring gamma-ray emissions in the universe, which

8704-644: The Plan for European Cooperating States Charter on 4 February 2016, a scheme introduced at ESA in 2001. The ECS Agreement was subsequently extended until 3 August 2022. Since 1 January 1979, Canada has had the special status of a Cooperating State within the ESA. By virtue of this accord, the Canadian Space Agency takes part in the ESA's deliberative bodies and decision-making and also in the ESA's programmes and activities. Canadian firms can bid for and receive contracts to work on programmes. The accord has

8832-494: The Reagan administration issued National Security Decision Directive Number 94 encouraging the commercialization of expendable launch vehicles (ELVs), which directed that, "The U.S. Government will license, supervise, and/or regulate U.S. commercial ELV operations only to the extent required to meet its national and international obligations and to ensure public safety." On 30 October 1984, US President Ronald Reagan signed into law

8960-514: The USA on the 20th anniversary of Yuri Gagarin 's flight, on 12 April 1981. During the Shuttle era, six orbiters were built, all of which flown in the atmosphere and five of which flown in space. The Enterprise was used only for approach and landing tests, launching from the back of a Boeing 747 and gliding to deadstick landings at Edwards AFB, California . The first Space Shuttle to fly into space

9088-486: The USSR launched Vostok 1, carrying cosmonaut Yuri Gagarin into orbit. The US responded with the suborbital launch of Alan Shepard on May 5, 1961, and the orbital launch of John Glenn on February 20, 1962. These events were followed by a pledge from U.S. President John F. Kennedy to go to the moon and the creation of the Gemini and Apollo programs. After successfully performing a rendezvous and docking and an EVA ,

9216-515: The United States, and to promote the use of technology once reserved only for military forces. Money for the launch was raised from a collection of Russian companies. The capsule parachuted into the Pacific Ocean and was brought to Seattle by a Russian missile-tracking ship. Since 1995 Khrunichev's Proton rocket has been marketed through International Launch Services , while the Soyuz rocket

9344-581: The United States, and were expatriated to work on American missiles at what became the Army Ballistic Missile Agency , producing missiles such as Juno I and Atlas . The Soviet Union , in turn, captured several V2 production facilities and built several replicas, with 5 of their 11 rockets successfully reaching their targets. (This was relatively consistent with Nazi Germany's success rate.) The Soviet Union developed intercontinental ballistic missiles to carry nuclear weapons as

9472-447: The United States, the FAA has created a new certification called Commercial Astronaut , a new occupation. In the 2000s, entrepreneurs began designing—and by the 2010s, deploying—space systems competitive to the governmental systems of the early decades of the space age. These new offerings have brought about significant market competition in space launch services after 2010 that had not been present previously, principally through

9600-461: The United States. Although the 1950s boom made it possible for Western European countries to invest in research and specifically in space-related activities, Western European scientists realised solely national projects would not be able to compete with the two main superpowers. In 1958, only months after the Sputnik shock , Edoardo Amaldi (Italy) and Pierre Auger (France), two prominent members of

9728-755: The Vega launcher, Vega-C had its first flight in July 2022. The new evolution of the rocket incorporates a larger first stage booster, the P120C replacing the P80 , an upgraded Zefiro (rocket stage) second stage, and the AVUM+ upper stage. This new variant enables larger single payloads, dual payloads, return missions, and orbital transfer capabilities. Historically, the Ariane family rockets have been funded primarily "with money contributed by ESA governments seeking to participate in

9856-536: The Western European scientific community, met to discuss the foundation of a common Western European space agency. The meeting was attended by scientific representatives from eight countries. The Western European nations decided to have two agencies: one concerned with developing a launch system, ELDO (European Launcher Development Organisation), and the other the precursor of the European Space Agency, ESRO (European Space Research Organisation). The latter

9984-592: The case of uncrewed spacecraft in high-energy orbits, to boost themselves into graveyard orbits . Used upper stages or failed spacecraft, however, often lack the ability to deorbit themselves. This becomes a major issue when large numbers of uncontrollable spacecraft exist in frequently used orbits, increasing the risk of debris colliding with functional satellites. This problem is exacerbated when large objects, often upper stages, break up in orbit or collide with other objects, creating often hundreds of small, hard to find pieces of debris. This problem of continuous collisions

10112-430: The commercial exploration and exploitation of 'space resources' [including... water and minerals]". The right does not extend to biological life , so anything that is alive may not be exploited commercially. The Act further asserts that "the United States does not [(by this Act)] assert sovereignty , or sovereign or exclusive rights or jurisdiction over, or the ownership of, any celestial body ". The SPACE Act includes

10240-586: The comparatively limited pool of the 1990s. For example, as of June 2013 and in the United States alone, ten billionaires had made "serious investments in private spaceflight activities" at six companies, including Stratolaunch Systems , Planetary Resources , Blue Origin , Virgin Galactic , SpaceX , and Bigelow Aerospace . The ten investors were Paul Allen , Larry Page , Eric Schmidt , Ram Shriram , Charles Simonyi , Ross Perot Jr. , Jeff Bezos , Richard Branson , Elon Musk , and Robert Bigelow . At

10368-490: The cooperation were laid out in a framework agreement signed by the two entities. On 17 November 2020, ESA signed a memorandum of understanding (MOU) with the South African National Space Agency (SANSA). SANSA CEO Dr. Valanathan Munsami tweeted: "Today saw another landmark event for SANSA with the signing of an MoU with the ESA. This builds on initiatives that we have been discussing for

10496-573: The country eligible for participation in ESA procurements. The country can also participate in all ESA programmes, except for the Basic Technology Research Programme. While the financial contribution of the country concerned increases, it is still much lower than that of a full member state. The agreement is normally followed by a Plan For European Cooperating State (or PECS Charter). This is a 5-year programme of basic research and development activities aimed at improving

10624-417: The course of its activities. In 1996, the United States government selected Lockheed Martin and Boeing to each develop Evolved Expendable Launch Vehicles (EELV) to compete for launch contracts and provide assured access to space. The government's acquisition strategy relied on the strong commercial viability of both vehicles to lower unit costs. This anticipated market demand did not materialise, but both

10752-747: The development of new spaceflight technologies and the operational costs of spaceflight . Following a similar model of space technology development, the European Space Agency was formed in 1975. Arianespace , born out of ESA's independent spaceflight efforts, became the world's first commercial launch service provider in the early 1980s. Subsequently, large defense contractors began to develop and operate space launch systems , which were derived from government rockets. Private spaceflight in Earth orbit includes communications satellites , satellite television , satellite radio , astronaut transport and sub-orbital and orbital space tourism . In

10880-442: The early 2020s some of these investments have paid off, with Musk's SpaceX coming to dominate the launch market in mass to orbit and with a $ 100 billion valuation. Other companies such as Bigelow Aerospace though have collapsed and left the market. Some aerospace startups, such as Rocket Lab , have gone public via special-purpose acquisition company , but their SPAC values have been affected by market volatility. Some investors see

11008-466: The exploration and use of outer space for peaceful purposes, and cooperation is already underway in two different areas of launcher activity that will bring benefits to both partners. Notable ESA programmes include SMART-1 , a probe testing cutting-edge space propulsion technology, the Mars Express and Venus Express missions, as well as the development of the Ariane 5 rocket and its role in

11136-582: The exploration of the Moon, the robotic exploration of Mars, leading to a broad Mars Sample Return mission in which Europe should be involved as a full partner, and human missions beyond LEO in the longer term." In August 2019, the ESA and the Australian Space Agency signed a joint statement of intent "to explore deeper cooperation and identify projects in a range of areas including deep space, communications, navigation, remote asset management, data analytics and mission support." Details of

11264-469: The extension of indemnification of US launch providers for extraordinary catastrophic third-party losses of a failed launch through 2025, while the previous indemnification law was scheduled to expire in 2016. The Act also extends, through 2025, the "learning period" restrictions which limit the ability of the FAA to enact regulations regarding the safety of spaceflight participants . Indemnification for extraordinary third-party losses has, as of 2015, been

11392-403: The following programmes, becoming 'Participating States', listed according to: As of 2023, Many other facilities are operated by national space agencies in close collaboration with the ESA. The ESA employs around 2,547 people, and thousands of contractors. Initially, new employees are contracted for an expandable four-year term, which is until the organization's retirement age of 63. According to

11520-532: The fullest extent feasible and shall not conduct activities with potential commercial applications that preclude or deter Commercial Sector space activities except for national security or public safety reasons. On 5 November 1990, United States President George H. W. Bush signed into law the Launch Services Purchase Act . The Act, in a complete reversal of the earlier Space Shuttle monopoly, ordered NASA to purchase launch services for its primary payloads from commercial providers whenever such services are required in

11648-416: The future. The ESA describes its work in two overlapping ways: These are either mandatory or optional. According to the ESA website, the activities are: Every member country (known as 'Member States') must contribute to these programmes: The European Space Agency Science Programme is a long-term programme of space science missions. Depending on their individual choices the countries can contribute to

11776-735: The government operating each of the cargo vehicles and cargo delivery systems. As of 2013, there is a mix of private and government resupply vehicles being used for the ISS, as the Russian Soyuz and Progress vehicles, and the European Space Agency (ESA) ATV (through 2014) and the Japanese Kounotori (through 2021) remain in operation after the 2011 retirement of the US Space Shuttle . In June 2013, British newspaper The Independent claimed that "the space race

11904-439: The higher rotational velocity of the Earth at the equator compared to near the Earth's poles where rotational velocity approaches zero. Ariane 6 is a heavy lift expendable launch vehicle developed by Arianespace . The Ariane 6 entered into its inaugural flight campaign on 26 April 2024 with the flight conducted on 9 July 2024. Vega is the ESA's carrier for small satellites. Developed by seven ESA members led by Italy . It

12032-567: The launch of the Euclid spacecraft , developed jointly with the Euclid Consortium, after 10 years of planning and building it is designed to better understand dark energy and dark matter by accurately measuring the accelerating expansion of the universe . The agency's facilities date back to ESRO and are deliberately distributed among various countries and areas. The most important are the following centres: The treaty establishing

12160-653: The launch provider to be legally liable for potential losses to uninvolved persons and structures. To the end of 2014, commercial passenger flights in space has remained effectively illegal, as the FAA has refused to give a commercial operator's license to any private space company. The United States updated US commercial space legislation with the passage of the Spurring Private Aerospace Competitiveness and Entrepreneurship Act of 2015 (SPACE Act of 2015) in November 2015. The update US law explicitly allows "US citizens to engage in

12288-553: The member states, and integrating national programs like satellite development, into the European program as much as possible. Jean-Jacques Dordain – ESA's Director General (2003–2015) – outlined the European Space Agency's mission in a 2003 interview: Today space activities have pursued the benefit of citizens, and citizens are asking for a better quality of life on Earth. They want greater security and economic wealth, but they also want to pursue their dreams, to increase their knowledge, and they want younger people to be attracted to

12416-428: The mid-launch explosion/loss of Challenger came the suspension of the government -operated shuttle flights, allowing the formation of a commercial launch industry. On 4 July 1982, the Reagan administration released National Security Decision Directive Number 42 which officially set its goal to expand United States private-sector investment and involvement in civil space and space-related activities. On 16 May 1983,

12544-409: The moon). These events culminated with the first crewed moon landing, Apollo 11 , and six subsequent missions, five of which successfully landed on the moon. Spaceflight has been widely employed by numerous government and commercial entities for placing satellites into orbit around Earth for a broad range of purposes. Certain government agencies have also sent uncrewed spacecraft exploring space beyond

12672-682: The nation's space industry capacity. At the end of the 5-year period, the country can either begin negotiations to become a full member state or an associated state or sign a new PECS Charter. Many countries, most of which joined the EU in both 2004 and 2007, have started to co-operate with the ESA on various levels: During the Ministerial Meeting in December 2014, ESA ministers approved a resolution calling for discussions to begin with Israel, Australia and South Africa on future association agreements. The ministers noted that "concrete cooperation

12800-406: The nearest star significantly faster. Another possibility that could allow for human interstellar spaceflight is to make use of time dilation , as this would make it possible for passengers in a fast-moving vehicle to travel further into the future while aging very little, in that their great speed slows down the rate of passage of on-board time. However, attaining such high speeds would still require

12928-402: The only way to explore them. Telerobotics also allows exploration of regions that are vulnerable to contamination by Earth micro-organisms since spacecraft can be sterilized. Humans can not be sterilized in the same way as a spaceship, as they coexist with numerous micro-organisms, and these micro-organisms are also hard to contain within a spaceship or spacesuit. The first uncrewed space mission

13056-399: The position of celestial bodies and orbits relative to the launch site. The biggest influence is often the rotation of the Earth. Once launched, orbits are normally located within relatively constant flat planes at a fixed angle to the axis of the Earth, and the Earth rotates within this orbit. A launch pad is a fixed structure designed to dispatch airborne vehicles. It generally consists of

13184-402: The pursuit of science and technology. I think that space can do all of this: it can produce a higher quality of life, better security, more economic wealth, and also fulfill our citizens' dreams and thirst for knowledge, and attract the young generation. This is the reason space exploration is an integral part of overall space activities. It has always been so, and it will be even more important in

13312-580: The reduction of the cost of space launch and the availability of more space launch capacity . Private spaceflight accomplishments to date include flying suborbital spaceplanes ( SpaceShipOne and SpaceShipTwo ), launching orbital rockets , flying two orbital expandable test modules ( Genesis I and II ). On the opposite, launching astronauts to the International Space Station and certain satellite launches are performed on behalf of and financed by government agencies. Planned private spaceflights beyond Earth orbit include personal spaceflights around

13440-464: The remainder heats the atmosphere. The Mercury , Gemini , and Apollo capsules splashed down in the sea. These capsules were designed to land at relatively low speeds with the help of a parachute. Soviet/Russian capsules for Soyuz make use of a big parachute and braking rockets to touch down on land. Spaceplanes like the Space Shuttle land like a glider . After a successful landing,

13568-479: The right. Countries typically have their own space programmes that differ in how they operate organisationally and financially with the ESA. For example, the French space agency CNES has a total budget of €2,015 million, of which €755 million is paid as direct financial contribution to the ESA. Several space-related projects are joint projects between national space agencies and the ESA (e.g. COROT ). Also,

13696-495: The satellites of its namesake, this was described by both the law's opponents and advocates of private space, as the first step on the road to privatisation. While launch vehicles were originally bought from private contractors, from the beginning of the Shuttle program until the Space Shuttle Challenger disaster in 1986, NASA attempted to position its shuttle as the sole legal space launch option. But with

13824-463: The size of the rocket relative to the payload is similar to an Intercontinental Ballistic Missile (ICBM). Any intercontinental spaceflight has to surmount problems of heating during atmospheric re-entry that are nearly as large as those faced by orbital spaceflight. A minimal orbital spaceflight requires much higher velocities than a minimal sub-orbital flight, and so it is technologically much more challenging to achieve. To achieve orbital spaceflight,

13952-640: The spacecraft, its occupants, and cargo can be recovered. In some cases, recovery has occurred before landing: while a spacecraft is still descending on its parachute, it can be snagged by a specially designed aircraft. This mid-air retrieval technique was used to recover the film canisters from the Corona spy satellites. Uncrewed spacecraft or robotic spacecraft are spacecraft without people on board. Uncrewed spacecraft may have varying levels of autonomy from human input, such as remote control , or remote guidance. They may also be autonomous , in which they have

14080-411: The start of the private space era it was not yet clear to what extent these entrepreneurs see "legitimate business opportunity, [for example], space tourism and other commercial activities in space, or [are] wealthy men seeking the exclusivity that space offers innovators and investors." There has been speculation as to whether these investments are a "gamble", and whether they will prove lucrative. As of

14208-743: The suborbital flights of Virgin Galactic and Blue Origin , the orbital flights of SpaceX and other COTS participants. Development of alternatives to government-provided space launch services began in earnest in the 2000s. Private interests began funding limited development programs, but the US government later sponsored a series of programs to incentivize and encourage private companies to begin offering both cargo, and later, crew space transportation services. Lower prices for launch services after 2010, and published prices for standard launch services, have brought about significant space launch market competition that had not been present previously. By 2012,

14336-610: The tangential velocity around the Earth is as important as altitude. In order to perform a stable and lasting flight in space, the spacecraft must reach the minimal orbital speed required for a closed orbit . Interplanetary spaceflight is flight between planets within a single planetary system . In practice, the use of the term is confined to travel between the planets of our Solar System . Plans for future crewed interplanetary spaceflight missions often include final vehicle assembly in Earth orbit, such as NASA's Constellation program and Russia's Kliper / Parom tandem. New Horizons

14464-495: The thrust to overcome the force of gravity and propel spacecraft onto suborbital trajectories . If the mission is orbital , the spacecraft usually separates the first stage and ignites the second stage , which propels the spacecraft to high enough speeds that it reaches orbit. Once in orbit, spacecraft are at high enough speeds that they fall around the Earth rather than fall back to the surface. Most spacecraft, and all crewed spacecraft, are designed to deorbit themselves or, in

14592-411: The total amount of energy imparted by a rocket stage to its payload. This can be the energy imparted by a first stage of a launch vehicle to an upper stage plus payload, or by an upper stage or spacecraft kick motor to a spacecraft . In order to reach a space station , a spacecraft would have to arrive at the same orbit and approach to a very close distance (e.g. within visual contact). This

14720-429: The traditional spaceflight industry as ripe for disruption , with "a 100-fold improvement [relatively straightforward and] a thousand-fold improvement [possible]". Between 2005 and 2015, there was US$ 10 billion of private capital invested in the space sector, most of it in the United States. This liberalized private space sector investments beginning in the 1980s, with additional legislative reforms in

14848-679: The two official languages of the ESA. Additionally, official documents are also provided in German and documents regarding the Spacelab have been also provided in Italian. If found appropriate, the agency may conduct its correspondence in any language of a member state. The following table lists all the member states and adjunct members, their ESA convention ratification dates, and their contributions as of 2024: Previously associated members were Austria, Norway and Finland, all of which later joined

14976-460: The use of some new, advanced method of propulsion . Dynamic soaring as a way to travel across interstellar space has been proposed as well. Intergalactic travel involves spaceflight between galaxies, and is considered much more technologically demanding than even interstellar travel and, by current engineering terms, is considered science fiction . However, theoretically speaking, there is nothing to conclusively indicate that intergalactic travel

15104-413: The vehicle is to land safely without vaporizing in the atmosphere. Typically this process requires special methods to protect against aerodynamic heating . The theory behind reentry was developed by Harry Julian Allen . Based on this theory, reentry vehicles present blunt shapes to the atmosphere for reentry. Blunt shapes mean that less than 1% of the kinetic energy ends up as heat reaching the vehicle, and

15232-460: The vehicle's mass and increase its delta-v . Launch systems are used to carry a payload from Earth's surface into outer space. Most current spaceflight uses multi-stage expendable launch systems to reach space. The first reusable spacecraft, the X-15 , was air-launched on a suborbital trajectory on 19 July 1963. The first partially reusable orbital spacecraft, the Space Shuttle , was launched by

15360-450: The world. In 2005, there were 18 total commercial launches and 37 non-commercial launches. Russia flew 44% of commercial orbital launches, while Europe had 28% and the United States had 6%. China's first private launch, a suborbital flight by OneSpace , took place in May 2018. In recent years, the funding to support private spaceflight has begun to be raised from a larger pool of sources than

15488-453: Was Sputnik , launched October 4, 1957 to orbit the Earth. Nearly all satellites , landers and rovers are robotic spacecraft. Not every uncrewed spacecraft is a robotic spacecraft; for example, a reflector ball is a non-robotic uncrewed spacecraft. Space missions where other animals but no humans are on-board are called uncrewed missions. The first human spaceflight was Vostok 1 on April 12, 1961, on which cosmonaut Yuri Gagarin of

15616-518: Was "in a slump", although the number of space investment deals per quarter had gone from 2 or 3 in 2012 to 14 by 2015. In 2017, CB Insights ranked the most active space tech investors, ranked from highest to lowest, were Space Angels Networks, Founders Fund, RRE Ventures, Data Collective, Bessemer, Lux Capital, Alphabet , Tencent Holdings , and Rothenberg Ventures . In June 2019, Miriam Kramer of Axios wrote that private spaceflight companies and investors were poised to capitalize on NASA's plan to open up

15744-480: Was NASA's first space probe intended to reach the Moon. A partial failure caused it to instead follow a suborbital trajectory to an altitude of 113,854 kilometers (70,746 mi) before reentering the Earth's atmosphere 43 hours after launch. The most generally recognized boundary of space is the Kármán line 100 km (62 mi) above sea level. (NASA alternatively defines an astronaut as someone who has flown more than 80 km (50 mi) above sea level.) It

15872-480: Was established on 20 March 1964 by an agreement signed on 14 June 1962. From 1968 to 1972, ESRO launched seven research satellites, but ELDO was not able to deliver a launch vehicle. Both agencies struggled with the underfunding and diverging interests of their participants. The ESA in its current form was founded with the ESA Convention in 1975, when ESRO was merged with ELDO. The ESA had ten founding member states: Belgium , Denmark , France , West Germany , Italy ,

16000-497: Was first worked on by ESRO. The ESA collaborated with NASA on the International Ultraviolet Explorer (IUE), the world's first high-orbit telescope, which was launched in 1978 and operated successfully for 18 years. A number of successful Earth-orbit projects followed, and in 1986 the ESA began Giotto , its first deep-space mission, to study the comets Halley and Grigg–Skjellerup . Hipparcos ,

16128-663: Was published by Scottish astronomer and mathematician William Leitch , in an 1861 essay "A Journey Through Space". More well-known is Konstantin Tsiolkovsky 's work, " Исследование мировых пространств реактивными приборами " ( The Exploration of Cosmic Space by Means of Reaction Devices ), published in 1903. In his work, Tsiolkovsky describes the fundamental rocket equation: Δ v = v e ln ⁡ m 0 m f {\displaystyle \Delta v=v_{e}\ln {\frac {m_{0}}{m_{f}}}} Where: This equation, known as

16256-762: Was the Columbia , followed by the Challenger , Discovery , Atlantis , and Endeavour . The Endeavour was built to replace the Challenger , which was lost in January 1986. The Columbia broke up during reentry in February 2003. European Space Agency The European Space Agency ( ESA ) is a 22-member intergovernmental body devoted to space exploration . With its headquarters in Paris and

16384-495: Was the launch of the first commercial communications satellites . The U.S. Communications Satellite Act of 1962 allowed commercial consortia owning and operating their own satellites, although these were still deployed on state-owned launch vehicles. In 1980, the European Space Agency created Arianespace , a company to be operated commercially after initial hardware and launch facilities were developed with government funding. Arianespace has since launched numerous satellites as

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