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***The Official Space Thread***

Gifter said:
Mars Rover Finds Aliens;

marsroveraliens-640x458.png
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racist aliens
 
WookieD said:
Geostationary orbit

A geostationary orbit, or Geostationary Earth Orbit (GEO), is a circular orbit 35,786 km (22,236 mi) above the Earth's equator and following the direction of the Earth's rotation. An object in such an orbit has an orbital period equal to the Earth's rotational period (one sidereal day), and thus appears motionless, at a fixed position in the sky, to ground observers. Communications satellites and weather satellites are often given geostationary orbits, so that the satellite antennas that communicate with them do not have to move to track them, but can be pointed permanently at the position in the sky where they stay. A geostationary orbit is a particular type of geosynchronous orbit.

The notion of a geosynchronous satellite for communication purposes was first published in 1928 (but not widely so) by Herman Potočnik.[1] The idea of a geostationary orbit was first disseminated on a wide scale in a 1945 paper entitled "Extra-Terrestrial Relays — Can Rocket Stations Give Worldwide Radio Coverage?" by British science fiction writer Arthur C. Clarke, published in Wireless World magazine. The orbit, which Clarke first described as useful for broadcast and relay communications satellites,[2] is sometimes called the Clarke Orbit.[3] Similarly, the Clarke Belt is the part of space about 35,786 km (22,000 mi) above sea level, in the plane of the Equator, where near-geostationary orbits may be implemented. The Clarke Orbit is about 265,000 km (165,000 mi) long.

http://en.wikipedia.org/wiki/Geostationary_orbit
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the notion of orbits make my head spin round..
 
a few more pics i have stumbled across :

Horsehead Nebula :
JMWP0.jpg


Milk Way viewed from Earth :
MuXbE.jpg


24 hour time lapse photo of the night sky viewed from the South Pole :
4pmQX.jpg
 
Thought I would bump thiis given the speculation circulating around the findings from by mars rover...
 
RIP Sir Patrick Moore

Taught me a lot about space and actually made me interested in it.
 
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