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December: Slow rise of oxygen | News | University of Bristol
www.bristol.ac.uk
Co-author Professor David Catling, formerly of the University of Bristol now at the University of Washington Earth and Space Sciences, added: ...
Learn more about david catling | (e) Science News
esciencenews.com
Updated by artificial intelligence Wed, 14 Sep 2011, 10:00:48 EDT Learn more ... And astrobiologist David Catling tells us about life on the red ...
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