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The good news from the Space Shuttle is that we now have 114 flights worth of experience with manned aerospace ships (counting VKK-1 Buran.) Even though it was at great expense: 14 lives and at least $60 billion, this is extremely valuable operational experience and has given me several ideas for being able to improve safety on the next generation system. I would like to consolidate my ideas with those of others so that we can have the widest range of options to chose from in developing critical systems for the next generation. We now understand the vagaries of space station design, construction, and assembly. With ISS we threaded the middle ground between the opinion that a proper space station, like Skylab or Option C, should be built on the ground and launched in one piece, reducing the number of expensive and dangerous launches and spacewalks by an order of magnitude, and the other opinion, that we dont need a space station at all. Because of the pad-launched, mostly expended nature of the Space Shuttle stack and proposals for high-lift and high-energy derivations, both of these routes offered a more economical next step than the ISS! The big, single chunk station took the form of Shuttle-C/Option-C, while the latter took the form of Ares/Mars Direct.
The National Aeronautics and Space Administration (NASA) is the agency of the United States government that is responsible for the nation's civilianspace program and for aeronautics and aerospace research. Since February 2006, NASA's mission statement has been to "pioneer the future in space exploration, scientific discovery and aeronautics research."  On September 14, 2011, NASA announced that it had selected the design of a new Space Launch System that it said would take the agency's astronauts farther into space than ever before and provide the cornerstone for future human space exploration efforts by the U.S.
NASA was established by the National Aeronautics and Space Act on July 29, 1958, replacing its predecessor, the National Advisory Committee for Aeronautics (NACA). The agency became operational on October 1, 1958. U.S. space exploration efforts have since been led by NASA, including theApollo moon-landing missions, the Skylab space station, and later the Space Shuttle. Currently, NASA is supporting the International Space Station and is overseeing the development of the Orion Multi-Purpose Crew Vehicle and Commercial Crew vehicles. The agency is also responsible for the Launch Services Program (LSP) which provides oversight of launch operations and countdown management for unmanned NASA launches.
NASA science is focused on better understanding Earth through the Earth Observing System, advancing heliophysics through the efforts of the Science Mission Directorate's Heliophysics Research Program, exploring bodies throughout the Solar System with advanced robotic missions such as New Horizons, and researching astrophysics topics, such as the Big Bang, through the Great Observatories and associated programs. NASA shares data with various national and international organizations such as from the Greenhouse Gases Observing Satellite.
the below given website may help u.
NASA stands for National Aeronautics and Space Administration. It was set up in the year 1958 by the then President Dwight Eisenhower. It was set up for space exploration and research. It is the successor of the National Advisory Committee for Aeronautics (NACA).
NASA has headed many famous missions like the Apollo mission, Project Gemini, Project Mercury, et cetera. It was one of the two competitors of the Space Race, the other being USSR. Neil Armstrong, an astronaut from NASA, was the first person to land on the moon.
NASA has also taken major steps in exploration, data collection and data distribution about the cosmos by launching various satellites and telescopes like the Hubble Space Telescope, Chandra X-ray telescope, among others.
In conclusion, NASA has played a major role in collecting and distributing data about space. It is due to the efforts of this organisation that many of the facts about the universe are known to us.
National Aeronautic Space Administration (a very famous administration)
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