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Habitable Zones & Global Climate: May 2014


Heat from a volcano erupting beneath an immense glacier would have created large lakes of liquid water on Mars in the relatively recent past.

Understanding the atmosphere's composition during the Archean eon is a fundamental issue to unravel ancient environmental conditions.

The isotopic compositions of terrestrial hydrogen and nitrogen are clearly different from those of the nebular gas from which the solar system formed, and also differ from most of cometary values.

Some Sun-like stars are 'Earth-eaters.' During their development they ingest large amounts of the rocky material from which 'terrestrial' planets like Earth, Mars and Venus are made.