Is there water on Mars?
Water on Mars - Wikipedia
Is there water on Mars? New NASA image indicates it is a possibility
Video NASA Discovers Water Flow on Mars - ABC News
Maybe Mars Didn't Lose its Water After All. It's Still Trapped on the Planet - Universe Today
Why Is There So Little Water Left on Mars?
Next stop, Mars
75: Is That Water Flowing on Mars?
Flowing Water On Mars Opens Door For New Exploration - AZPM
Could there have been water on Mars without CO2?
Where did Mars' water go? - Astronomy Stack Exchange
ESA - Was there water on early Mars?
Mars rocks may have drunk up all the water and doomed life there
NASA Confirms Evidence That Liquid Water Flows on Today's Mars - NASA
Evidence of More Recent Presence of Water on Mars Revealed - Astrobiology
