1. A Primordial Atmospheric Origin Of Hydrospheric Deuterium Enrichment On Mars - Astrobiology  Astrobiology News
  2. New clues about early atmosphere on Mars suggest a wet planet capable of supporting life  Phys.org
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The deuterium-to-hydrogen (D/H or 2H/1H) ratio of Martian atmospheric water (~6x standard mean ocean water, SMOW) is higher than that of known sources, requiring planetary enrichment.The deuterium-to-hydrogen (D/H or 2H/1H) ratio of Martian atmospheric water (~6x standard mean ocean water, SMOW) is higher than that of known sources, requiring planetary enrichment.

A Primordial Atmospheric Origin Of Hydrospheric Deuterium Enrichment On Mars - Astrobiology

New research published in Earth and Planetary Science Letters suggests that Mars was born wet, with a dense atmosphere allowing warm-to-hot oceans for millions of years. To reach this conclusion, researchers ...

New clues about early atmosphere on Mars suggest a wet planet capable of supporting life