Space debris — populations seen from outside geosynchronous orbit (GEO). Note the two primary debris fields, the ring of objects in GEO, and the cloud of objects in low earth orbit (LEO) … Wikipedia
Space science — is an all encompassing term that describes all of the various science fields that are concerned with the study of the Universe, generally also meaning excluding the Earth and outside of the Earth s atmosphere . Originally, all of these fields… … Wikipedia
space exploration — Investigation of the universe beyond Earth s atmosphere by means of manned and unmanned spacecraft. Study of the use of rockets for spaceflight began early in the 20th century. Germany s research on rocket propulsion in the 1930s led to… … Universalium
Space Race — For a discussion of all spaceflight programs to date, see History of spaceflight. For a list of key events, see Timeline of space exploration. For other uses of the term, see Space Race (disambiguation). A replica of Sputnik 1, the world s… … Wikipedia
Space Shuttle external tank — A Space Shuttle External Tank (ET) is the component of the Space Shuttle launch vehicle that contains the liquid hydrogen fuel and liquid oxygen oxidizer. During lift off and ascent it supplies the fuel and oxidizer under pressure to the three… … Wikipedia
Space Shuttle Challenger disaster — For more information about the final mission and crew of the Challenger, see STS 51 L. Space Shuttle Challenger s smoke plume after the in flight breakup that killed all seven crew members … Wikipedia
International Space Station — ISS redirects here. For other uses, see ISS (disambiguation). International Space Station … Wikipedia
Outer space — For other uses, see Outer space (disambiguation). The boundaries between the Earth s surface and outer space, at the Kármán line, 100 km (62 mi) and exosphere at 690 km (430 mi). Not to scale Outer space is the void that exists beyond any… … Wikipedia
Angular velocity — Do not confuse with angular frequency The unit for angular velocity is rad/s.In physics, the angular velocity is a vector quantity (more precisely, a pseudovector) which specifies the angular speed, and axis about which an object is rotating. The … Wikipedia
Russian Federal Space Agency — Infobox Space agency name = Russian Federal Space Agency native name = Федеральное космическое агентство России acronym = RKA caption = RKA logo size = 150px location = headquarters = flagicon|Russia Moscow spaceport = Baikonur Cosmodrome,… … Wikipedia
escape velocity — es*cape vel*o ci*ty, n. (Physics) The minimum velocity at which an object must be moving in order for it to overcome the gravitational attraction of a massive celestial body, such as the earth or the sun, and escape beyond its gravitational field … The Collaborative International Dictionary of English