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The Latest from Mars: Dried up Riverbed May Have Flowed into an Ancient Ocean
An artist’s rendition of what water on Mars may have looked like. Image Credit: NASA
When it comes to Mars, the hot topic of study is water – a prerequisite for life.
While liquid water is currently not stable on the surface of Mars, there is extensive evidence that it may have been in the past. Astronomers have discovered dried up riverbeds, lake deltas, and evidence of widespread glaciers – to name but a few examples.
However, evidence for a massive standing body of water, such as an ocean, is hard to come by. Early climate models struggle to create circumstances under which liquid water would be stable at all. Nonetheless, an ocean spanning the northern lowlands (approximately one third of the planet) has been long hypothesized.
Scientists at Caltech may have just now confirmed this long-held hope in finding recent evidence for a vast Martian ocean.
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Read the rest of The Latest from Mars: Dried up Riverbed May Have Flowed into an Ancient Ocean (349 words)
© Shannon Hall for Universe Today, 2013. |
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Post tags: Curiosity, Mars, mars reconnaissance orbiter, water
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Source: http://www.universetoday.com/103580/the-latest-from-mars-dried-up-riverbed-may-have-flowed-into-an-ancient-ocean/
