Monday, March 9, 2015

Ancient Mars Had an Ocean, Scientists Say

An artist rendering of what recent research suggests Mars might have looked like around 4 billion years ago, when most researchers think the planet was considerably warmer than it is today


After six years of planetary observations, scientists at NASA say they have found convincing new evidence that ancient Mars had an ocean.
It was probably the size of the Arctic Ocean, larger than previously estimated, the researchers reported on Thursday. The body of water spread across the low-lying plain of the planet’s northern hemisphere for millions of years, they said...
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