Inside Planet Mars (Infographic)
by Karl Tate
, SPACE.com Infographics Artist | November 15, 2010 02:22pm ET
The planet Mars is the fourth planet from the sun and named after the Roman God of War and is also called the 'Red Planet.' Mars has a thin atmosphere and surface features similar to Earth.
7 Biggest Mysteries of Mars
Mars Myths & Misconceptions: Quiz
What Went Wrong on Mars? | Video Show