Were Life-Bearing Microenvironments Discovered on a Mar's Volcano?
Observations by NASA's Mars Reconnaissance Orbiter revealed light-colored mounds of a mineral deposited on a volcanic cone more than three billion years ago that may preserve evidence of one of the most the silica mounds on the flanks of a volcanic cone provide the best evidence yet found on Mars for an intact deposit from a hydrothermal environment --- a steam fumarole, or hot spring believed to have provided habitats for some of Earth's earliest life forms.
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