Mars has a giant canyon that makes Earth's Grand canyon look tiny. The canyon on Mars is longer than the distance across the US.
Mars also has a very large volcano that is 3 times as big as Mt Everest. It is called Olympus Mons. Mars has a thin atmosphere surrounding and is not enough air for a human to breath.
orbit length
( once around the sun ) -1.88 years
rotation -24.62 hours
(1 day)
mars by Mick Hyde
