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National Aeronautics and Space Administration
National Aeronautics and Space Administration (NASA), civilian agency of the U.S. federal government with the mission of conducting research and developing operational programs in the areas of space exploration , artificial satellites (see satellite, artificial ), rocketry, and space telescopes (...
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National Aeronautics and Space Administration
National Aeronautics and Space Administration (NASA), civilian agency of the U.S. federal government with the mission of conducting research and developing operational programs in the areas of space exploration , artificial satellites (see satellite, artificial ), rocketry, and space telescopes (...
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space travel
space travel see space exploration ; space science .
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European Space Agency
European Space Agency (ESA), multinational agency dedicated to the promotion, for exclusively peaceful purposes, of cooperation among European states in space research and technology. Member states include Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, the ...
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space exploration
space exploration the investigation of physical conditions in space and on stars, planets, and other celestial bodies through the use of artificial satellites (spacecraft that orbit the earth), space probes (spacecraft that pass through the solar system and that may or may not orbit another cel...
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I. Rice Pereira
I. Rice Pereira (Irene Rice Pereira) , 1907-71, American painter, b. Chelsea, Mass. In 1935, Pereira helped found the Federal Art Project design laboratory and taught there for several years. Her mature painting style is characterized by the play of light and space through open, framelike forms ju...
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space station
space station or space platform, artificial earth satellite, usually manned, that is placed in a fixed orbit and can serve as a base for astronomical observations; zero-gravity materials processing; satellite assembly, refueling, and repair; or, possibly, as weapons platforms. The first space s...
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intercolumniation
intercolumniation , in classical architecture, the clear space between the edges of two adjacent columns, as measured at the lower portion of their shafts. Vitruvius compiled standard intercolumniations for the three orders, expressed in terms of the column diameter. In the great works of Greek arch...
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rocket
rocket any vehicle propelled by ejection of the gases produced by combustion of self-contained propellants. Rockets are used in fireworks, as military weapons, and in scientific applications such as space exploration.
Rocket Propulsion
The force acting on a rocket, called its thrust, is e...
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nonlinear dynamics
nonlinear dynamics study of systems governed by equations in which a small change in one variable can induce a large systematic change; the discipline is more popularly known as chaos (see chaos theory ). Unlike a linear system, in which a small change in one variable produces a small and easily q...
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