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84-517: Robert Zubrin ( / ˈ z uː b r ɪ n / ; born April 9, 1952) is an American aerospace engineer , author, and advocate for human exploration of Mars . He is also an advocate for U.S. space superiority, writing that "in the 21st century, victory on land, sea or in the air will go to the power that controls space" and that "if we desire peace on Earth, we need to prepare for war in space." He and his colleague at Martin Marietta , David Baker, were

168-640: A U.S. citizen for at least seven years, and must live in the state that they represent. In addition to the 435 voting members, there are six non-voting members, consisting of five delegates and one resident commissioner . There is one delegate each from Washington, D.C. , Guam , the Virgin Islands , American Samoa , the Commonwealth of the Northern Mariana Islands , and a resident commissioner from Puerto Rico . Unlike

252-722: A B.A. in Mathematics from the University of Rochester (1974); he was a science teacher for 7 years before becoming an engineer. He earned a M.S. in Nuclear Engineering (1984), a M.S. in Aeronautics and Astronautics (1986), and a Ph.D. in Nuclear Engineering (1992) — all from the University of Washington . He has developed a number of concepts for space propulsion and exploration, and

336-686: A background character in The Martian Race (1999) by Gregory Benford , a science fiction novel depicting early human explorers on Mars in the very near future. Benford, who is also an astrophysicist, is a longtime member of both the board of directors and the steering committee of the Mars Society. In Martin Burckhardt's science fiction novel Score , the Mars Expedition Astronauts send 90-year-old Robert Zubrin

420-707: A complex set of relationships between state and federal courts. Federal courts can sometimes hear cases arising under state law pursuant to diversity jurisdiction , state courts can decide certain matters involving federal law, and a handful of federal claims are primarily reserved by federal statute to the state courts. Both court systems have exclusive jurisdiction in some areas and concurrent jurisdiction in others. The U.S. Constitution safeguards judicial independence by providing that federal judges shall hold office "during good behavior"; in practice, this usually means they serve until they die, retire, or resign. A judge who commits an offense while in office may be impeached in

504-523: A constitutional interpretation by the courts. One of the theoretical pillars of the U.S. Constitution is the idea of " checks and balances " among the powers and responsibilities of the three branches of American government: the executive, the legislative, and the judiciary. For example, while the legislative branch ( Congress ) has the power to create law, the executive branch under the president can veto any legislation—an act which, in turn, can be overridden by Congress. The president nominates judges to

588-613: A few cases. The judicial power extends to cases arising under the Constitution, an Act of Congress ; a U.S. treaty ; cases affecting ambassadors , ministers and consuls of foreign countries in the U.S.; cases and controversies to which the federal government is a party; controversies between states (or their citizens) and foreign nations (or their citizens or subjects); and bankruptcy cases (collectively "federal-question jurisdiction"). The Eleventh Amendment removed from federal jurisdiction cases in which citizens of one state were

672-552: A maximum of 853. Though development of this aircraft began in 1988 as a competitor to the 747, the A380 made its first test flight in April 2005. Some of the elements of aerospace engineering are: The basis of most of these elements lies in theoretical physics , such as fluid dynamics for aerodynamics or the equations of motion for flight dynamics . There is also a large empirical component. Historically, this empirical component

756-615: A more limited role for the central government in relation to individuals, the states, or other recognized entities. Since the American Civil War , the powers of the federal government have generally expanded greatly, although there have been periods since that time of legislative branch dominance (e.g., the decades immediately following the Civil War) or when states' rights proponents have succeeded in limiting federal power through legislative action, executive prerogative or by

840-577: A potential single-stage-to-orbit spacecraft, and developed the Black Colt . However, he would eventually leave Martin Marietta to co-form Pioneer Rocketplane with Mitchell Burnside Clapp , an aerospace engineer from the US Air Force , due to a perceived lack of interest in reducing launch costs at larger aerospace firms. In his book, Entering Space: Creating a Spacefaring Civilization , Zubrin would write about how both large aerospace firms, and

924-539: A research and development company committed to developing innovative technologies to further space exploration and improve life on earth. The company relied primarily on small business research contracts and tackled a large variety of space-relevant problems. On 13 July 2020 Voyager Space Holdings announced its acquisition of Pioneer Astronautics. In 2008 Zubrin founded Pioneer Energy, a research and development firm headquartered in Lakewood, Colorado . The company's focus

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1008-468: A series of public debates Zubrin has held with his friend Christopher McKay , who advocates a moderately biocentric position on the ethics of terraforming. For example, a written account of some of these debates is available in On to Mars: Colonizing a New World , as a joint article, "Do indigenous Martian bacteria have precedence over human exploration?" (pp. 177–182) An aged Robert Zubrin also appears as

1092-478: A single elected term." Under the Presentment Clause of Article I, a bill that passes both chambers of Congress shall be presented to the president, who may sign the bill into law or veto the bill by returning it to the chamber where it originated. If the president neither signs nor vetoes a bill "within ten Days (Sundays excepted) after it shall have been presented to him" it becomes a law without

1176-462: A video reply thanking him for his work over the years after receiving a congratulatory one from him for their successful landing on Mars.[p. 227] Zubrin was featured in a 2007 CBC News documentary special, The Passionate Eye , titled "The Mars Underground". The songwriter and musician Frank Black (alias Black Francis of the Pixies) penned an homage to Zubrin, "Robert Onion", on the album Dog in

1260-426: Is based on the principles of federalism and republicanism , in which power is shared between the federal government and state governments . The interpretation and execution of these principles, including what powers the federal government should have and how those powers can be exercised, have been debated ever since the adoption of the Constitution. Some make a case for expansive federal powers while others argue for

1344-409: Is known as aerospace engineering. Because of the complexity and number of disciplines involved, aerospace engineering is carried out by teams of engineers, each having their own specialized area of expertise. The origin of aerospace engineering can be traced back to the aviation pioneers around the late 19th to early 20th centuries, although the work of Sir George Cayley dates from the last decade of

1428-506: Is often colloquially referred to as "rocket science". Flight vehicles are subjected to demanding conditions such as those caused by changes in atmospheric pressure and temperature , with structural loads applied upon vehicle components. Consequently, they are usually the products of various technological and engineering disciplines including aerodynamics , air propulsion , avionics , materials science , structural analysis and manufacturing . The interaction between these technologies

1512-569: Is sometimes used. The terms "Federal" and "National" in government agency or program names generally indicate affiliation with the federal government; for instance, the Federal Bureau of Investigation , National Oceanic and Atmospheric Administration , and National Park Service . Because the seat of government is in Washington, D.C. , "Washington" is sometimes used as a metonym for the federal government. The United States government

1596-519: Is the author of over 200 technical and non-technical papers and several books. He is also President of both the Mars Society and Pioneer Astronautics, a private company that does research and development on innovative aerospace technologies. Zubrin is the co-inventor on a U.S. design patent and a U.S. utility patent on a hybrid rocket/airplane, and on a U.S. utility patent on an oxygen supply system (see links below). Zubrin's inventions include

1680-475: Is the name that appears on money, in treaties, and in legal cases to which the nation is a party. The terms "Government of the United States of America" or "United States Government" are often used in official documents to represent the federal government as distinct from the states collectively. In casual conversation or writing, the term "Federal Government" is often used, and the term "U.S. Government"

1764-422: Is to develop mobile Enhanced Oil Recovery (EOR) systems that can enable CO 2 -based EOR for both small and large oil producers in the United States. The company has also developed a number of new processes for manufacturing synthetic fuels. Zubrin is known as an advocate of a moderately anthropocentric position in the ethics of terraforming . Discussions of the ethics of terraforming often make reference to

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1848-625: The Antonov An-225 Mriya cargo aircraft commenced its first flight. It holds the records for the world's heaviest aircraft, heaviest airlifted cargo, and longest airlifted cargo of any aircraft in operational service. On October 25, 2007, the Airbus A380 made its maiden commercial flight from Singapore to Sydney, Australia. This aircraft was the first passenger plane to surpass the Boeing 747 in terms of passenger capacity, with

1932-559: The Boeing 747 made its first commercial flight from New York to London. This aircraft made history and became known as the "Jumbo Jet" or "Whale" due to its ability to hold up to 480 passengers. Another significant development came in 1976, with the development of the first passenger supersonic aircraft, the Concorde . The development of this aircraft was agreed upon by the French and British on November 29, 1962. On December 21, 1988,

2016-779: The Messerschmitt Me 262 which entered service in 1944 towards the end of the Second World War. The first definition of aerospace engineering appeared in February 1958, considering the Earth's atmosphere and outer space as a single realm, thereby encompassing both aircraft ( aero ) and spacecraft ( space ) under the newly coined term aerospace . In response to the USSR launching the first satellite, Sputnik , into space on October 4, 1957, U.S. aerospace engineers launched

2100-549: The National Space Society , Zubrin established the Mars Society in 1998. This is an international organization advocating a human mission to Mars as a goal, by private funding if possible. Zubrin was born in Brooklyn , New York City on April 9, 1952. His father was descended from Russian Jewish immigrants. Zubrin was awarded his first patent at age 20 in 1972 for Three Player Chess . Zubrin holds

2184-508: The Senate . The U.S. House of Representatives is made up of 435 voting members, each of whom represents a congressional district in a state from where they were elected. Apportionment of seats among the 50 states is determined by state populations, and it is updated after each decennial U.S. Census. Each member serves a two-year term. In order to be elected as a representative, an individual must be at least 25 years of age, must have been

2268-526: The Supreme Court , combat piracies and felonies , declare war , raise and support armies , provide and maintain a navy , make rules for the regulation of land and naval forces, provide for, arm and discipline the militia , exercise exclusive legislation in the District of Columbia , regulate interstate commerce , and to make laws necessary to properly execute powers. Over the two centuries since

2352-494: The U.S. Senate , all members of the U.S. House must be elected and cannot be appointed. In the case of a vacancy, the seat must be filled through a special election, as required under Article 1 of the U.S. Constitution. In contrast, the Senate is made up of two senators from each state, regardless of population. There are currently 100 senators (2 from each of the 50 states), who each serve six-year terms. Approximately one-third of

2436-463: The U.S. Supreme Court . In the federal division of power, the federal government shares sovereignty with each of the 50 states in their respective territories. U.S. law recognizes Indigenous tribes as possessing sovereign powers , while being subject to federal jurisdiction. The full name of the republic is the "United States of America". No other name appears in the Constitution , and this

2520-532: The U.S. Tax Court , are specialized courts handling only certain kinds of cases, known as subject matter jurisdiction . The Bankruptcy Courts are supervised by the district courts, and, as such, are not considered part of the Article III judiciary. As such, their judges do not have lifetime tenure, nor are they Constitutionally exempt from diminution of their remuneration. The Tax Court is an Article I Court, not an Article III Court. The district courts are

2604-574: The US Government , would fail to reduce the costs of spaceflight. In 1998, Zubrin founded the Mars Society, and in the following years, was able to attract large amounts of public interest to potential human colonisation on Mars. The work of the Mars Society was successful enough as to encourage the US Government to not cut funding for several Mars rover missions. In 1996 Zubrin founded Pioneer Astronautics (formerly Pioneer Invention),

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2688-505: The United States District Courts , which are the general trial courts for federal law, and for certain controversies between litigants who are not deemed citizens of the same state, known as diversity jurisdiction . There are three levels of federal courts with general jurisdiction, which are courts that handle both criminal and civil suits between individuals. Other courts, such as the bankruptcy courts and

2772-914: The United States Postal Service (USPS), NASA , the Central Intelligence Agency (CIA), the Environmental Protection Agency (EPA), and the United States Agency for International Development (USAID). In addition, there are government-owned corporations , including the Federal Deposit Insurance Corporation and the National Railroad Passenger Corporation . The Judiciary, under Article III of

2856-713: The White House staff, the National Security Council , the Office of Management and Budget , the Council of Economic Advisers , the Council on Environmental Quality , the Office of the U.S. Trade Representative , the Office of National Drug Control Policy , and the Office of Science and Technology Policy . Outside of the EOP and the executive departments are a number of independent agencies . These include

2940-476: The Wright Brothers performed the first sustained, controlled flight of a powered, heavier-than-air aircraft, lasting 12 seconds. The 1910s saw the development of aeronautical engineering through the design of World War I military aircraft. In 1914, Robert Goddard was granted two U.S. patents for rockets using solid fuel, liquid fuel, multiple propellant charges, and multi-stage designs. This would set

3024-687: The first American satellite on January 31, 1958. The National Aeronautics and Space Administration was founded in 1958 after the Sputnik crisis . In 1969, Apollo 11 , the first human space mission to the Moon , took place. It saw three astronauts enter orbit around the Moon, with two, Neil Armstrong and Buzz Aldrin , visiting the lunar surface. The third astronaut, Michael Collins , stayed in orbit to rendezvous with Armstrong and Aldrin after their visit. An important innovation came on January 30, 1970, when

3108-630: The head of government (the chief executive). The Constitution directs the president to " take care that the laws be faithfully executed " and requires the president to swear or affirm to "preserve, protect and defend the Constitution of the United States." Legal scholars William P. Marshall and Saikrishna B. Prakash write of the Clause: "the President may neither breach federal law nor order their subordinates to do so, for defiance cannot be considered faithful execution. The Constitution also incorporates

3192-618: The nuclear salt-water rocket and co-inventor (with Dana Andrews) of the magnetic sail . Zubrin is fellow at Center for Security Policy . During his professional career, Zubrin was a member of Lockheed Martin 's scenario development team charged with developing strategies for space exploration . He was also "a senior engineer with the Martin Marietta Astronautics company, working as one of its leaders in development of advanced concepts for interplanetary missions". During his time at Martin Marietta, he drafted ideas for

3276-523: The 18th to the mid-19th century. One of the most important people in the history of aeronautics and a pioneer in aeronautical engineering, Cayley is credited as the first person to separate the forces of lift and drag , which affect any atmospheric flight vehicle. Early knowledge of aeronautical engineering was largely empirical, with some concepts and skills imported from other branches of engineering. Some key elements, like fluid dynamics , were understood by 18th-century scientists. In December 1903,

3360-886: The Cabinet who are appointed by the president. These are the White House Chief of Staff, Administrator of the Environmental Protection Agency, Director of the Office of Management & Budget, United States Trade Representative, U.S. Ambassador to the United Nations, Chairman of the Council of Economic Advisers, and Administrator of the Small Business Administration. The heads of the 15 departments are chosen by

3444-643: The Constitution, explains and applies the laws. This branch does this by hearing and eventually making decisions on various legal cases. Article III section I of the Constitution establishes the Supreme Court of the United States and authorizes the United States Congress to establish inferior courts as their need shall arise. Section I also establishes a lifetime tenure for all federal judges and states that their compensation may not be diminished during their time in office. Article II section II establishes that all federal judges are to be appointed by

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3528-593: The English bars on dispensing or suspending the law, with some supposing that the Clause itself prohibits both." Many presidential actions are undertaken via executive orders , presidential proclamations , and presidential memoranda . The president is the commander-in-chief of the armed forces . Under the Reception Clause , the president is empowered to "receive Ambassadors and other public Ministers";

3612-577: The House plus its two senators). The District of Columbia has a number of electoral votes "equal to the whole number of Senators and Representatives in Congress to which the District would be entitled if it were a State, but in no event more than the least populous State". A President may also be seated by succession . As originally drafted, there was no limit to the time a President could serve, however

3696-837: The President alone, in the Courts of Law, or in the Heads of Departments." These appointments delegate "by legal authority a portion of the sovereign powers of the federal government." The Constitution grants the president the "Power to grant Reprieves and Pardons for Offences against the United States , except in Cases of Impeachment"; this clemency power includes the power to issue absolute or conditional pardons, and to issue commute sentences , to remit fines, and to issue general amnesties . The presidential clemency power extends only to federal crimes, and not to state crimes. The president has informal powers beyond their formal powers. For example,

3780-510: The Sand . The lyrics are in the form of an acrostic , spelling "Robert The Case for Mars Zubrin". In 2010 Robert Zubrin was featured in the Symphony of Science video "The Case for Mars" along with Carl Sagan , Brian Cox , and Penelope Boston . The fictional character Dr. Zachary Walzer in the 2010–2011 independent VODO series Pioneer One was inspired by Zubrin. In 2016, Zubrin

3864-439: The Senate stands for election every two years. If a vacancy occurs, the state governor appoints a replacement to complete the term or to hold the office until a special election can take place. The House and Senate each have particular exclusive powers. For example, the Senate must approve (give " advice and consent " to) many important presidential appointments, including cabinet officers, federal judges (including nominees to

3948-479: The Supreme Court), department secretaries (heads of federal executive branch departments), U.S. military and naval officers, and ambassadors to foreign countries. All legislative bills for raising revenue must originate in the House of Representatives. The approval of both chambers is required to pass all legislation, which then may only become law by being signed by the president (or, if the president vetoes

4032-493: The Twenty-second Amendment, ratified in 1951, originally limits any president to serving two four-year terms (8 years); the amendment specifically "caps the service of a president at 10 years" by providing that "if a person succeeds to the office of president without election and serves less than two years, he may run for two full terms; otherwise, a person succeeding to office of president can serve no more than

4116-558: The United States [REDACTED] [REDACTED] The federal government of the United States ( U.S. federal government or U.S. government ) is the common government of the United States , a federal republic located primarily in North America , comprising 50 states , five major self-governing territories , several island possessions , and the federal district (national capital) of Washington, D.C. , where

4200-525: The United States was formed, many disputes have arisen over the limits on the powers of the federal government. These disputes have often been the subject of lawsuits that have ultimately been decided by the United States Supreme Court . Congressional oversight is intended to prevent waste and fraud, protect civil liberties and individual rights, ensure executive compliance with the law, gather information for making laws and educating

4284-407: The aerospace industry. A background in chemistry, physics, computer science and mathematics is important for students pursuing an aerospace engineering degree. The term " rocket scientist " is sometimes used to describe a person of great intelligence since rocket science is seen as a practice requiring great mental ability, especially technically and mathematically. The term is used ironically in

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4368-458: The bill, both houses of Congress then re-pass the bill, but by a two-thirds majority of each chamber, in which case the bill becomes law without the president's signature). The powers of Congress are limited to those enumerated in the Constitution; all other powers are reserved to the states and the people. The Constitution also includes the Necessary and Proper Clause , which grants Congress

4452-402: The case from state court to federal court. The United States Courts of Appeals are appellate courts that hear appeals of cases decided by the district courts, and some direct appeals from administrative agencies, and some interlocutory appeals. The U.S. Supreme Court hears appeals from the decisions of the courts of appeals or state supreme courts, and in addition has original jurisdiction over

4536-404: The chambers to consider urgent matters. The vice president is the second-highest official in rank of the federal government. The vice president's duties and powers are established in the legislative branch of the federal government under Article 1, Section 3, Clauses 4 and 5 as the president of the Senate ; this means that they are the designated presiding officer of the Senate. In that capacity,

4620-544: The consent of two-thirds of the Senate. Article II's Appointments Clause provides that the president "shall nominate, and by and with the Advice and Consent of the Senate, shall appoint Ambassadors, other public Ministers and Consuls, Judges of the supreme Court, and all other Officers of the United States " while providing that "Congress may by Law vest the Appointment of such inferior Officers, as they think proper, in

4704-538: The delay and cost-to-benefit ratio of first establishing a base or outpost on an asteroid or another Apollo program -like return to the Moon, as neither would be able to provide all of its own oxygen, water, or energy; these resources are producible on Mars, and he expects people would be there thereafter. Disappointed with the lack of interest from government in Mars exploration and after the success of his book The Case for Mars (1996), as well as leadership experience at

4788-475: The driving force behind Mars Direct , a proposal in a 1990 research paper intended to produce significant reductions in the cost and complexity of such a mission. The key idea was to use the Martian atmosphere to produce oxygen, water, and rocket propellant for the surface stay and return journey. A modified version of the plan was subsequently adopted by NASA as their "design reference mission". He questions

4872-572: The economy. In addition, each house may name special, or select, committees to study specific problems. Today, much of the congressional workload is borne by the subcommittees, of which there are around 150. The Constitution grants numerous powers to Congress. Enumerated in Article I, Section 8, these include the powers to levy and collect taxes ; to coin money and regulate its value; provide for punishment for counterfeiting; establish post offices and roads, issue patents, create federal courts inferior to

4956-418: The executive branch when becoming president upon the death, resignation, or removal of the president, which has happened nine times in U.S. history. Lastly, in the case of a Twenty-fifth Amendment succession event, the vice president would become acting president, assuming all of the powers and duties of president, except being designated as president. Accordingly, by circumstances, the Constitution designates

5040-538: The expression "It's not rocket science" to indicate that a task is simple. Strictly speaking, the use of "science" in "rocket science" is a misnomer since science is about understanding the origins, nature, and behavior of the universe; engineering is about using scientific and engineering principles to solve problems and develop new technology. The more etymologically correct version of this phrase would be "rocket engineer". However, "science" and "engineering" are often misused as synonyms. Federal government of

5124-568: The field, accelerated by the advent of mainstream civil aviation. Notable airplanes of this era include the Curtiss JN 4 , Farman F.60 Goliath , and Fokker Trimotor . Notable military airplanes of this period include the Mitsubishi A6M Zero , Supermarine Spitfire and Messerschmitt Bf 109 from Japan, United Kingdom, and Germany respectively. A significant development came with the first operational Jet engine -powered airplane,

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5208-725: The integration of all components that constitute an aerospace vehicle (subsystems including power, aerospace bearings , communications, thermal control , life support system , etc.) and its life cycle (design, temperature, pressure, radiation , velocity , lifetime ). Aerospace engineering may be studied at the advanced diploma , bachelor's , master's , and Ph.D. levels in aerospace engineering departments at many universities, and in mechanical engineering departments at others. A few departments offer degrees in space-focused astronautical engineering. Some institutions differentiate between aeronautical and astronautical engineering. Graduate degrees are offered in advanced or specialty areas for

5292-486: The law and creating precedent for future law and decisions. The United States Constitution does not specifically mention the power of judicial review , which is the power to declare a law unconstitutional. There have been instances in the past where such declarations have been ignored by the other two branches. Below the U.S. Supreme Court are the United States Courts of Appeals , and below them in turn are

5376-448: The majority of the federal government is based. The U.S. federal government is composed of three distinct branches: legislative , executive , and judicial , whose powers are vested by the U.S. Constitution in the Congress , the president , and the federal courts , respectively. The powers and duties of these branches are further defined by acts of Congress, including the creation of executive departments and courts subordinate to

5460-426: The nation's highest judiciary authority, the Supreme Court (as well as to lower federal courts), but those nominees must be approved by Congress. The Supreme Court, in turn, can invalidate unconstitutional laws passed by the Congress. The United States Congress , under Article I of the Constitution, is the legislative branch of the federal government. It is bicameral , comprising the House of Representatives and

5544-642: The office of vice president. Article II, Section 2 of the Constitution sets forth the creation of a presidential Cabinet. The role of the Cabinet is to advise the president and carry out the programs and laws of the federal government. The Cabinet is composed of the vice president and the leaders of 15 executive departments. Those executive departments are the Departments of State, Treasury, Defense, Justice, Interior, Agriculture, Commerce, Labor, Health and Human Services, Housing and Urban Development, Transportation, Energy, Education, Veterans Affairs, and Homeland Security. Additionally, there are seven other members of

5628-403: The official. Then, a trial is held in the Senate to decide whether the official should be removed from office. As of 2023 , three presidents have been impeached: Andrew Johnson , Bill Clinton , and Donald Trump (twice). None of the three were removed from office following trial in the Senate. Article I, Section 2, paragraph 2 of the U.S. Constitution gives each chamber the power to "determine

5712-421: The plaintiffs and the government of another state was the defendant. It did not disturb federal jurisdiction in cases in which a state government is a plaintiff and a citizen of another state the defendant. The power of the federal courts extends both to civil actions for damages and other redress, and to criminal cases arising under federal law. The interplay of the Supremacy Clause and Article III has resulted in

5796-543: The power to "make all laws which shall be necessary and proper for carrying into execution the foregoing powers". Members of the House and Senate are elected by first-past-the-post voting in every state except Louisiana and Georgia , which have runoffs , and Maine and Alaska , which use ranked-choice voting . Congress has the power to remove the president, federal judges, and other federal officers from office. The House of Representatives and Senate have separate roles in this process. The House must first vote to impeach

5880-497: The power to adjourn Congress whenever the House and Senate cannot agree when to adjourn; no president has ever used this power. The president also has the constitutional power to, "on extraordinary Occasions, convene both Houses, or either of them"; this power has been used "to consider nominations, war, and emergency legislation." This Section invests the President with the discretion to convene Congress on "extraordinary occasions"; this special session power that has been used to call

5964-415: The power to re-organize or even abolish federal courts lower than the Supreme Court. The U.S. Supreme Court decides cases and controversies , which include matters pertaining to the federal government, disputes between states, and interpretation of the United States Constitution, and, in general, can declare legislation or executive action made at any level of the government as unconstitutional , nullifying

6048-502: The president and approved with the "advice and consent" of the U.S. Senate. Once confirmed, these "Cabinet secretaries" serve at the pleasure of the president. In addition to the executive departments, a number of staff organizations are grouped into the Executive Office of the President (EOP), which was created in 1939 by President Franklin D. Roosevelt. The EOP is overseen by the White House Chief of Staff. The EOP includes

6132-548: The president and confirmed by the United States Senate. The Judiciary Act of 1789 subdivided the nation jurisdictionally into judicial districts and created federal courts for each district. The three tiered structure of this act established the basic structure of the national judiciary: the Supreme Court, 13 courts of appeals, 94 district courts, and two courts of special jurisdiction. Congress retains

6216-543: The president has broad authority to conduct foreign relations, is generally considered to have the sole power of diplomatic recognition , and is the United States' chief diplomat, although the Congress also has an important role in legislating on foreign affairs, and can, for example, "institute a trade embargo, declare war upon a foreign government that the President had recognized, or decline to appropriate funds for an embassy in that country." The president may also negotiate and sign treaties, but ratifying treaties requires

6300-474: The president has major agenda-setting powers to influence lawmaking and policymaking, and typically has a major role as the leader of their political party . The president and vice president are normally elected as running mates by the Electoral College ; each state has a number of electoral votes equal to the size of its Congressional delegation ( i.e. , its number of Representatives in

6384-525: The president's signature, "unless the Congress by their Adjournment prevent its Return in which Case it shall not be a Law" (called a pocket veto ). A presidential veto may be overridden by a two-thirds vote in both houses of Congress; this occurs relatively infrequently. The president may be impeached by a majority in the House and removed from office by a two-thirds majority in the Senate for " treason , bribery , or other high crimes and misdemeanors ". The president may not dissolve Congress , but has

6468-581: The public, and evaluate executive performance. It applies to cabinet departments, executive agencies, regulatory commissions, and the presidency. Congress's oversight function takes many forms: The executive branch is established in Article Two of the United States Constitution , which vests executive power in the president of the United States . The president is both the head of state (performing ceremonial functions) and

6552-477: The rules of its proceedings". From this provision were created congressional committees , which do the work of drafting legislation and conducting congressional investigations into national matters. The 118th Congress (2023–2025) has 20 standing committees in the House and 19 in the Senate, plus 4 joint permanent committees with members from both houses overseeing the Library of Congress , printing, taxation, and

6636-717: The stage for future applications in multi-stage propulsion systems for outer space. On March 3, 1915, the U.S. Congress established the first aeronautical research administration, known then as the National Advisory Committee for Aeronautics, or NACA. It was the first government-sponsored organization to support aviation research. Though intended as an advisory board upon inception, the Langley Aeronautical Laboratory became its first sponsored research and testing facility in 1920. Between World Wars I and II, great leaps were made in

6720-529: The trial courts wherein cases that are considered under the Judicial Code (Title 28, United States Code) consistent with the jurisdictional precepts of federal question jurisdiction , diversity jurisdiction, and pendent jurisdiction can be filed and decided. The district courts can also hear cases under removal jurisdiction , wherein a case brought in a state court meets the requirements for diversity jurisdiction, and one party litigant chooses to "remove"

6804-518: The vice president as routinely in the legislative branch, or succeeding to the executive branch as president, or possibly being in both as acting president pursuant to the Twenty-fifth Amendment . Because of circumstances, the overlapping nature of the duties and powers attributed to the office, the title of the office and other matters, such has generated a spirited scholarly dispute regarding attaching an exclusive branch designation to

6888-522: The vice president has the authority ( ex officio , for they are not an elected member of the Senate) to cast a tie-breaking vote . Pursuant to the Twelfth Amendment , the vice president presides over the joint session of Congress when it convenes to count the vote of the Electoral College . As first in the U.S. presidential line of succession , the vice president's duties and powers move to

6972-441: Was derived from testing of scale models and prototypes, either in wind tunnels or in the free atmosphere. More recently, advances in computing have enabled the use of computational fluid dynamics to simulate the behavior of the fluid, reducing time and expense spent on wind-tunnel testing. Those studying hydrodynamics or hydroacoustics often obtain degrees in aerospace engineering. Additionally, aerospace engineering addresses

7056-476: Was one of several scientists and engineers interviewed in the National Geographic miniseries Mars . Aerospace engineering "Aeronautical engineering" was the original term for the field. As flight technology advanced to include vehicles operating in outer space , the broader term " aerospace engineering" has come into use. Aerospace engineering, particularly the astronautics branch,

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