Here They are
Fast Facts:
› A long-gone sea on southern Mars once held nearly 10 times as much water as all of North America's Great Lakes combined, a recent report estimates.
› The report interprets data from NASA's Mars Reconnaissance Orbiter as evidence that hot springs pumped mineral-laden water directly into this ancient Martian sea.
› Undersea hydrothermal conditions on Mars may have existed about 3.7 billion years ago; undersea hydrothermal conditions on Earth at about that same time are a strong candidate for where and when life on Earth began.
› The report adds an important type of wet ancient Martian environment to the diversity indicated by previous findings of evidence for rivers, lakes, deltas, seas, groundwater and hot springs.
› A long-gone sea on southern Mars once held nearly 10 times as much water as all of North America's Great Lakes combined, a recent report estimates.
› The report interprets data from NASA's Mars Reconnaissance Orbiter as evidence that hot springs pumped mineral-laden water directly into this ancient Martian sea.
› Undersea hydrothermal conditions on Mars may have existed about 3.7 billion years ago; undersea hydrothermal conditions on Earth at about that same time are a strong candidate for where and when life on Earth began.
› The report adds an important type of wet ancient Martian environment to the diversity indicated by previous findings of evidence for rivers, lakes, deltas, seas, groundwater and hot springs.
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