japan rocks/andromeda Posted April 20, 2010 Share Posted April 20, 2010 What happened to mars there is a theory that there was life on mars is it true. I think so mars has valleys and ice. So was there liquid water or not if not why were there valleys.:confused: Link to comment Share on other sites More sharing options...
Spyman Posted April 21, 2010 Share Posted April 21, 2010 Some links you might find interesting to visit: Mars Exploration Rover Mission Wikipedia Planet Mars Link to comment Share on other sites More sharing options...
japan rocks/andromeda Posted April 22, 2010 Author Share Posted April 22, 2010 Some links you might find interesting to visit: Mars Exploration Rover Mission Wikipedia Planet Mars cool thanks Link to comment Share on other sites More sharing options...
Airbrush Posted April 22, 2010 Share Posted April 22, 2010 "Mars is also roughly intermediate in size, mass, and surface gravity between Earth and Earth's Moon (the Moon is about half the diameter of Mars, whereas Earth is twice; the Earth is about nine times more massive than Mars, and the Moon one-ninth as massive)." Interesting facts about Earth, Mars, Moon: Earth is twice Mars' diameter, and Mars is twice Moon's diameter. Earth is 9 times as massive as Mars, and Mars is 9 times as massive as the Moon. All from wikipedia, thanks to Spyman. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now