galactic orbit
51Cosmic Background Explorer — (COBE) General information NSSDC ID 1989 089A Organization NASA …
52Spaceplane — A Space Shuttle rocketing into space, just after booster separation. A spaceplane is a vehicle that operates as an aircraft in Earth s atmosphere, as well as a spacecraft when it is in space. It combines features of an aircraft and a spacecraft,… …
53Globular cluster — s from the Sun and contains hundreds of thousands of stars. [cite news coauthors =The Hubble Heritage team url = http://hubblesite.org/newscenter/newsdesk/archive/releases/1999/26/ title = Hubble Images a Swarm of Ancient Stars work = HubbleSite… …
54Space colonization — Artist Les Bossinas 1989 concept of Mars mission Space colonization (also called space settlement, space humanization, or space habitation) is the concept of permanent human habitation outside of Earth. Although hypothetical at the present time,… …
55Exploration of Mars — Viking Lander 2 site May 1979 Viking Lander 1 site February 1978 The exploration of Mars has been an importan …
56telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …
57Space tourism — is the recent phenomenon of tourists paying for flights into space pioneered by Russia.As of 2008, orbital space tourism opportunities are limited and expensive, with only the Russian Space Agency providing transport. The price for a flight… …
58List of human spaceflight programs — For a chronological list of human spaceflights, including crews..., dates and mission summaries, see List of human spaceflights. This is a list of human spaceflight programs, including successful programs, programs that were canceled, and… …
59Earth in fiction — An overwhelming majority of fiction is set on or features the Earth. However, authors of speculative fiction novels and writers and directors of science fiction film deal with Earth quite differently than authors of conventional fiction. Unbound… …
60Granat — Infobox Space telescope name = International Astrophysical Observatory GRANAT caption = picture credit: NASA organization = Soviet space program major contractors = NPO Lavochkin alt names = nssdc id =… …
