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Gemini 6
Gemini 6A (officially Gemini VI-A) With Gemini IV, NASA changed to Roman numerals for Gemini mission designations. was a 1965 crewed United States spaceflight in NASA's Gemini program. The mission, flown by Wally Schirra and Thomas P. Stafford, achieved the first crewed rendezvous with another spacecraft, its sister Gemini 7. Although the Soviet Union had twice previously launched simultaneous pairs of Vostok spacecraft, these established radio contact with each other, but they had no ability to adjust their orbits in order to rendezvous and came no closer than several kilometers of each other, while the Gemini 6 and 7 spacecraft came as close as one foot (30 cm) and could have docked had they been so equipped. Gemini 6A was the fifth crewed Gemini flight, the 13th crewed American flight, and the 21st crewed spaceflight of all time (including two X-15 flights over ). Crew Backup crew Support crew * Charles A. Bassett II (Houston CAPCOM) * Alan L. Bean (Cape CAPCOM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Rendezvous
Space is a three-dimensional continuum containing positions and directions. In classical physics, physical space is often conceived in three linear dimensions. Modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as '' spacetime''. The concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework. In the 19th and 20th centuries mathematicians began to examine geometries that are non-Euclidean, in which space is conceived as '' curved'', rather than '' flat'', as in the Euclidean space. According to Albert Einstein's theory of general relativity, space around gravitational fields deviates from Euclidean space. Experimental tests of general relativity have confirmed that non-Euclidean geometries provide a bet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-15
The North American X-15 is a Hypersonic speed, hypersonic rocket-powered aircraft which was operated by the United States Air Force and the National Aeronautics and Space Administration (NASA) as part of the List of X-planes, X-plane series of experimental aircraft. The X-15 set speed and altitude records in the 1960s, crossing the Kármán line, edge of outer space and returning with valuable data used in aircraft and spacecraft design. The X-15's highest speed, , X-15 Flight 188, was achieved on 3October 1967, when William J. Knight flew at Mach number, Mach6.7 at an altitude of , or 19.34miles. This set the Flight airspeed record, official world record for the highest speed ever recorded by a crewed, powered aircraft, which remains unbroken. During the X-15 program, 12pilots flew a combined 199flights. Of these, 8pilots flew a combined 13flights which met the Air Force human spaceflight, spaceflight criterion by exceeding the altitude of , thus qualifying these pilots as bei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gemini VI Stafford Capsule
Gemini most often refers to: * Gemini (constellation), one of the constellations of the zodiac * Gemini (astrology), an astrological sign Gemini may also refer to: Science and technology Space * Gemini in Chinese astronomy, the Gemini constellation in Chinese astronomy * Project Gemini, the second US crewed spaceflight program * Gemini Observatory, consisting of telescopes in the Northern and Southern Hemispheres * Gemini Planet Imager, an instrument for observing extrasolar planets Computing * Gemini (chatbot), a chatbot developed by Google ** Gemini (language model), a multimodal large language model from Google * Gemini (protocol), an Internet protocol providing access to primarily textual documents in Gemini space * SCO Gemini, a UnixWare/OpenServer merger project by SCO * Gemini chip, an updated version of the Apple Computer chip Mega II * Xiaomi Mi 5 (codename Gemini), an Android phone * Gemini PDA, an Android/Linux PDA/phone with a keyboard * Yahoo! Gemini, a former n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbital Period
The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object. In astronomy, it usually applies to planets or asteroids orbiting the Sun, moons orbiting planets, exoplanets orbiting other stars, or binary stars. It may also refer to the time it takes a satellite orbiting a planet or moon to complete one orbit. For celestial objects in general, the orbital period is determined by a 360° revolution of one body around its primary, ''e.g.'' Earth around the Sun. Periods in astronomy are expressed in units of time, usually hours, days, or years. Its reciprocal is the orbital frequency, a kind of revolution frequency, in units of hertz. Small body orbiting a central body According to Kepler's Third Law, the orbital period ''T'' of two point masses orbiting each other in a circular or elliptic orbit is: :T = 2\pi\sqrt where: * ''a'' is the orbit's semi-major axis * ''G'' is the gravitationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inclination
Orbital inclination measures the tilt of an object's orbit around a celestial body. It is expressed as the angle between a reference plane and the orbital plane or axis of direction of the orbiting object. For a satellite orbiting the Earth directly above the Equator, the plane of the satellite's orbit is the same as the Earth's equatorial plane, and the satellite's orbital inclination is 0°. The general case for a circular orbit is that it is tilted, spending half an orbit over the northern hemisphere and half over the southern. If the orbit swung between 20° north latitude and 20° south latitude, then its orbital inclination would be 20°. Orbits The inclination is one of the six orbital elements describing the shape and orientation of a celestial orbit. It is the angle between the orbital plane and the plane of reference, normally stated in degrees. For a satellite orbiting a planet, the plane of reference is usually the plane containing the planet's equator. For pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apogee
An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. The line of apsides (also called apse line, or major axis of the orbit) is the line connecting the two extreme values. Apsides pertaining to orbits around different bodies have distinct names to differentiate themselves from other apsides. Apsides pertaining to geocentric orbits, orbits around the Earth, are at the farthest point called the ''apogee'', and at the nearest point the ''perigee'', like with orbits of satellites and the Moon around Earth. Apsides pertaining to orbits around the Sun are named ''aphelion'' for the farthest and ''perihelion'' for the nearest point in a heliocentric orbit. Earth's two apsides are the farthest point, ''aphelion'', and the nearest point, ''perihelion'', of its orbit around the host Sun. The terms ''aphelion'' and ''perihelion'' apply in the same way to the orbits of Jupiter and the other planets, the comets, and the asteroids of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mass
Mass is an Intrinsic and extrinsic properties, intrinsic property of a physical body, body. It was traditionally believed to be related to the physical quantity, quantity of matter in a body, until the discovery of the atom and particle physics. It was found that different atoms and different elementary particle, elementary particles, theoretically with the same amount of matter, have nonetheless different masses. Mass in modern physics has multiple Mass in special relativity, definitions which are conceptually distinct, but physically equivalent. Mass can be experimentally defined as a measure (mathematics), measure of the body's inertia, meaning the resistance to acceleration (change of velocity) when a net force is applied. The object's mass also determines the Force, strength of its gravitational attraction to other bodies. The SI base unit of mass is the kilogram (kg). In physics, mass is Mass versus weight, not the same as weight, even though mass is often determined by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elliot See
Elliot McKay See Jr. (July 23, 1927 – February 28, 1966) was an American engineer, United States naval aviator, naval aviator, test pilot and NASA astronaut. See received an appointment to the United States Merchant Marine Academy in 1945. He graduated in 1949 with a Bachelor of Science degree in marine engineering and a United States Navy Reserve, United States Naval Reserve commission, and joined the Aircraft Gas Turbine Division of General Electric as an engineer. He was called to active duty as a naval aviator during the Korean War, and flew Grumman F9F Panther fighters with VA-52 (U.S. Navy), Fighter Squadron 144 (VF-144) from the aircraft carrier in the Mediterranean, and in the Western Pacific Ocean, Western Pacific. He married Marilyn Denahy in 1954, and they had three children. See rejoined General Electric (GE) in 1956 as a flight test engineer after his tour of duty, and became a group leader and experimental test pilot at Edwards Air Force Base, where he flew th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eugene Cernan
Eugene Andrew Cernan (; March 14, 1934 – January 16, 2017) was an American astronaut, United States naval aviator, naval aviator, electrical engineer, aeronautical engineer, and fighter pilot. Cernan traveled into space three times and to the Moon twice: as pilot of Gemini 9A in June 1966, as lunar module pilot of Apollo 10 in May 1969, and as commander of Apollo 17 in December 1972, the final Apollo Moon landing, lunar landing. He was also a backup crew member of Gemini 12, Apollo 7, and Apollo 14. During the Apollo 17 mission, he became the 11th person to walk on the Moon as well as the astronaut with the longest time spent walking on the Moon; he is also the last person to walk on the Moon. Before becoming an astronaut, Cernan graduated with a bachelor of science degree in electrical engineering from Purdue University in Indiana, and joined the United States Navy, U.S. Navy through the Naval Reserve Officers Training Corps (NROTC). After flight training, he received ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alan Bean
Alan LaVern Bean (March 15, 1932 – May 26, 2018) was an American naval officer and aviator, aeronautical engineer, test pilot, NASA astronaut and painter. He was selected to become an astronaut by NASA in 1963 as part of Astronaut Group 3, and was the fourth person to walk on the Moon. Before becoming an astronaut, Bean graduated with a Bachelor of Science degree in Aeronautical Engineering from University of Texas at Austin in 1955 and re-joined the U.S. Navy—he served as an enlisted member for a year after his high school graduation. He received his naval aviator wings in 1956 and served as a fighter pilot. In 1960, he graduated from the U.S. Naval Test Pilot School, flew as a test pilot and was The New Nine selection finalist in 1962. Bean made his first flight into space aboard Apollo 12 in November 1969, the second crewed mission to land on the Moon. He spent over seven hours walking on the Moon during two lunar excursions. He made his second and final flight ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Bassett
Charles Arthur "Charlie" Bassett II (December 30, 1931 – February 28, 1966) (Major, USAF) was an American electrical engineer and United States Air Force test pilot. He went to Ohio State University for two years and later graduated from Texas Tech University with a Bachelor of Science degree in Electrical Engineering. He joined the Air Force as a pilot and graduated from both the Air Force's Experimental Test Pilot School and the Aerospace Research Pilot School. Bassett was married and had two children. He was selected as a NASA astronaut in 1963 and was assigned to ''Gemini 9''. He died in an airplane crash during training for his first spaceflight. He is memorialized on the Space Mirror Memorial; The Astronaut Monument; and the ''Fallen Astronaut'' memorial plaque, which was placed on the Moon during the Apollo 15 mission. Early life and education Bassett was born on December 30, 1931, in Dayton, Ohio, to Charles Arthur "Pete" Bassett (1897–1957) and Fannie Belle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
