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STS-41-B EVA
STS-41-B was the tenth NASA Space Shuttle mission and the fourth flight of the . It launched on 3 February 1984, and landed on 11 February 1984 after deploying two communications satellites. It was also notable for including the first untethered spacewalk. Following STS-9, the flight numbering system for the Space Shuttle program was changed. Thus, the next flight, instead of being designated STS-10, became STS-41-B; the original successor to STS-9, STS-10, was canceled due to payload delays. Crew Spacewalks ;EVA 1 * Personnel: McCandless and Stewart * Date: 7 February 1984 * Duration: 5 hours, 55 minutes ;EVA 2 * Personnel: McCandless and Stewart * Date: 9 February 1984 * Duration: 6 hours, 17 minutes Crew seating arrangements Mission summary ''Challenger'' lifted off from Kennedy Space Center at 08:00:00 a.m. EST on 3 February 1984. It was estimated that 100,000 people attended the launch. Two communications satellites were deployed about 8 hours afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Transportation System
The Space Transportation System (STS), also known internally to NASA as the Integrated Program Plan (IPP), was a proposed system of reusable crewed space vehicles envisioned in 1969 to support extended operations beyond the Apollo program. (NASA appropriated the name for its Space Shuttle Program, the only component of the proposal to survive Congressional funding approval). The purpose of the system was two-fold: to reduce the cost of spaceflight by replacing the current method of launching capsules on expendable rockets with reusable spacecraft; and to support ambitious follow-on programs including permanent orbiting space stations around Earth and the Moon, and a human landing mission to Mars. In February 1969, President Richard Nixon appointed a Space Task Group headed by Vice President Spiro Agnew to recommend human space projects beyond Apollo. The group responded in September with the outline of the STS, and three different program levels of effort culminating with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ronald McNair
Ronald Erwin McNair (October 21, 1950 – January 28, 1986) was an American NASA astronaut and physicist. He died during the launch of the Space Shuttle ''Challenger'' on mission STS-51-L, in which he was serving as one of three mission specialists in a crew of seven. Prior to the ''Challenger'' disaster, he flew as a mission specialist on STS-41-B aboard ''Challenger'' from February 3 to 11, 1984, becoming the second African American and the first Baháʼí to fly in space. Background McNair was born October 21, 1950, in Lake City, South Carolina, to Pearl M. and Carl C. McNair. He had two brothers, Carl and Eric A. McNair. In the summer of 1959, he refused to leave the segregated Lake City Public Library without being allowed to check out his books. After the police and his mother were called, he was allowed to borrow books from the library; the building that housed the library at the time is now named after him. A children's book, ''Ron's Big Mission'', offers a fic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STS-41-B EVA
STS-41-B was the tenth NASA Space Shuttle mission and the fourth flight of the . It launched on 3 February 1984, and landed on 11 February 1984 after deploying two communications satellites. It was also notable for including the first untethered spacewalk. Following STS-9, the flight numbering system for the Space Shuttle program was changed. Thus, the next flight, instead of being designated STS-10, became STS-41-B; the original successor to STS-9, STS-10, was canceled due to payload delays. Crew Spacewalks ;EVA 1 * Personnel: McCandless and Stewart * Date: 7 February 1984 * Duration: 5 hours, 55 minutes ;EVA 2 * Personnel: McCandless and Stewart * Date: 9 February 1984 * Duration: 6 hours, 17 minutes Crew seating arrangements Mission summary ''Challenger'' lifted off from Kennedy Space Center at 08:00:00 a.m. EST on 3 February 1984. It was estimated that 100,000 people attended the launch. Two communications satellites were deployed about 8 hours afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STS-41-B Palapa B-2 Deployment
STS-41-B was the tenth NASA Space Shuttle mission and the fourth flight of the . It launched on 3 February 1984, and landed on 11 February 1984 after deploying two communications satellites. It was also notable for including the first untethered spacewalk. Following STS-9, the flight numbering system for the Space Shuttle program was changed. Thus, the next flight, instead of being designated STS-10, became STS-41-B; the original successor to STS-9, STS-10, was canceled due to payload delays. Crew Spacewalks ;EVA 1 * Personnel: McCandless and Stewart * Date: 7 February 1984 * Duration: 5 hours, 55 minutes ;EVA 2 * Personnel: McCandless and Stewart * Date: 9 February 1984 * Duration: 6 hours, 17 minutes Crew seating arrangements Mission summary ''Challenger'' lifted off from Kennedy Space Center at 08:00:00 a.m. EST on 3 February 1984. It was estimated that 100,000 people attended the launch. Two communications satellites were deployed about 8 hours aft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STS-41-B Launch (20071535339)
STS-41-B was the tenth NASA Space Shuttle mission and the fourth flight of the . It launched on 3 February 1984, and landed on 11 February 1984 after deploying two communications satellites. It was also notable for including the first untethered spacewalk. Following STS-9, the flight numbering system for the Space Shuttle program was changed. Thus, the next flight, instead of being designated STS-10, became STS-41-B; the original successor to STS-9, STS-10, was canceled due to payload delays. Crew Spacewalks ;EVA 1 * Personnel: McCandless and Stewart * Date: 7 February 1984 * Duration: 5 hours, 55 minutes ;EVA 2 * Personnel: McCandless and Stewart * Date: 9 February 1984 * Duration: 6 hours, 17 minutes Crew seating arrangements Mission summary ''Challenger'' lifted off from Kennedy Space Center at 08:00:00 a.m. EST on 3 February 1984. It was estimated that 100,000 people attended the launch. Two communications satellites were deployed about 8 hours afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Shuttle Seating Plan
Space is the boundless three-dimensional extent in which objects and events have relative position and direction. In classical physics, physical space is often conceived in three linear dimensions, although 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. Debates concerning the nature, essence and the mode of existence of space date back to antiquity; namely, to treatises like the ''Timaeus'' of Plato, or Socrates in his reflections on what the Greeks called ''khôra'' (i.e. "space"), or in the ''Physics'' of Aristotle (Book IV, Delta) in the definition of ''topos'' (i.e. place), or in the later "geometrical conception of place" as "space ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canceled Space Shuttle Missions
During NASA's Space Shuttle program, several missions were canceled. Many were canceled as a result of the ''Challenger'' and the ''Columbia'' disasters or due to delays in the development of the shuttle. Others were canceled because of changes in payload and mission requirements. Canceled due to the late development of the Space Shuttle In 1972, NASA's planners had projected for 570 Space Shuttle missions between 1980 and 1991. Later, this estimate was lowered to 487 launches between 1980 and 1992. The details of the first 23 projected missions, listed in the third edition of ''Manned Spaceflight'' (Reginald Turnill, 1978) and the first edition of the ''STS Flight Assignment Baseline'', an internal NASA document published in October 1977, are presented below. Later in the development process, NASA suggested using the first manned Space Shuttle mission, STS-1, as a sub-orbital test of the Return to Launch Site (RTLS) flight profile devised for emergency abort scenarios. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extravehicular Activity
Extravehicular activity (EVA) is any activity done by an astronaut in outer space outside a spacecraft. In the absence of a breathable Earthlike atmosphere, the astronaut is completely reliant on a space suit for environmental support. EVA includes ''spacewalks'' and lunar or planetary surface exploration (commonly known from 1969 to 1972 as ''moonwalks''). In a stand-up EVA (SEVA), an astronaut stands through an open hatch but does not fully leave the spacecraft. EVA has been conducted by the Soviet Union/Russia, the United States, Canada, the European Space Agency and China. On March 18, 1965, Alexei Leonov became the first human to perform a spacewalk, exiting the Voskhod 2 capsule for 12 minutes and 9 seconds. On July 20, 1969, Neil Armstrong became the first human to perform a moonwalk, outside his lunar lander on Apollo 11 for 2 hours and 31 minutes. On the last three Moon missions, astronauts also performed deep-space EVAs on the return to Earth, to retrieve film ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communications Satellite
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. Many communications satellites are in geostationary orbit above the equator, so that the satellite appears stationary at the same point in the sky; therefore the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track the satellite. Others form satellite constellations in low Earth orbit, where antennas on the ground have to follow the position of the satellites and switch between satellites frequently. The high frequency radio waves used for telecommunications links travel by line of sight and so are obstructed by the curve of the Earth. The purpose of communications sate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Shuttle
The Space Shuttle is a retired, partially reusable low Earth orbital spacecraft system operated from 1981 to 2011 by the U.S. National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program. Its official program name was Space Transportation System (STS), taken from a 1969 plan for a system of reusable spacecraft where it was the only item funded for development. The first ( STS-1) of four orbital test flights occurred in 1981, leading to operational flights (STS-5) beginning in 1982. Five complete Space Shuttle orbiter vehicles were built and flown on a total of 135 missions from 1981 to 2011. They launched from the Kennedy Space Center (KSC) in Florida. Operational missions launched numerous satellites, interplanetary probes, and the Hubble Space Telescope (HST), conducted science experiments in orbit, participated in the Shuttle-''Mir'' program with Russia, and participated in construction and servicing of the International Space Station (ISS). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STS-41-C
STS-41-C (formerly STS-13) was NASA's eleventh Space Shuttle mission, and the fifth mission of Space Shuttle ''Challenger''. The launch, which took place on April 6, 1984, marked the first direct ascent trajectory for a Space Shuttle mission. During the mission, ''Challenger''s crew captured and repaired the malfunctioning Solar Maximum Mission ("Solar Max") satellite, and deployed the Long Duration Exposure Facility (LDEF) experimental apparatus. STS-41-C was extended one day due to problems capturing the Solar Max satellite, and the landing on April 13, 1984, took place at Edwards Air Force Base, instead of at Kennedy Space Center as had been planned. The flight was originally numbered STS-13.James D. A. van Hoften NASA Johnson Space Center Oral History Project. December 5, 2007, Retri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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