Here are some facts about Mars that you may or may not know.  And this year has been an awesome one in regards to new pics of the red planet:

We now know that surface temperatures average -50 degree Celsius. Its thin atmosphere is dominated by Carbon dioxide.

And yet Mars remains a world imbued with possibilities. We now scour its surface for water that may have once spawned living organisms, for potential landing spots for future astronauts, and for minerals to support a permanent human presence.

What do you think?  Were there organisms on the planet in the past or even now?  Feel free to comment with your opinions!