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General Discussion => Science & Nature => Topic started by: sam on December 15, 2009, 01:47

Title: Mars orbiter lines up both Martian moons in one photo
Post by: sam on December 15, 2009, 01:47

http://www.scientificamerican.com/gallery_directory.cfm?photo_id=8E6C48CB-C925-05E5-86D78678378F19AA

Quote

Unlike the gas giants Saturn and Jupiter, both of which have dozens of moons, and Earth, which boasts a massive moon relative to its size that helps stabilize the planet, Mars doesn't have much in the way of lunar companions. Its two moons, Phobos and Deimos, are small, odd-shaped lumps that may be asteroids captured by Mars's gravity. Phobos, the larger of the two, is just 27 kilometers across in its broadest dimension, whereas Deimos is only about 15 kilometers across.

Title: Re: Mars orbiter lines up both Martian moons in one photo
Post by: Clive on December 15, 2009, 11:43

Isn't this a repeat from yesterday?   ;D

Title: Re: Mars orbiter lines up both Martian moons in one photo
Post by: sam on December 15, 2009, 14:22

its different....  ;)

Title: Re: Mars orbiter lines up both Martian moons in one photo
Post by: Clive on December 15, 2009, 18:08

Oh yes, yesterday's was a video.   ;D