Tag Archives: oceans

Perfect beaches ruined by martian volcanoes

The presence of potential shorelines in the northern hemisphere of Mars suggests that Mars once had oceans. The non-constant elevations of these putative shorelines, however, do not support that hypothesis. Recent work [published in Nature] by Robert Citron and colleagues … Continue reading

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Mars’ oceans formed early, with a possible assist from volcanism

A new scenario seeking to explain how Mars’ putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million years earlier and were not as deep as once thought. The proposal [published … Continue reading

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