Tag Archives | biosphere


Early Biosphere Productivity Boosted By Cosmic Rays

A frenetic period of star-making in the Milky Way about two-and-a-half billion years ago had extraordinary effects on life on Earth, says Dr. Henrik Svensmark, of the Danish National Space Center. Writing in the journalAstronomische Nachrichten, Dr. Svensmark reports how bacterial populations in the sea flunctuated wildly, with an instability unique to that period. Based […]

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