Meteorites may seed earth life says researchers
Two scientists report a fragment of the Murchison meteorite contains left handed amino acids, suggesting clues to life origins. Nagy cautions missing amino acids and possible contamination could invalidate results, while Sagan notes atmospheric processing may bias findings.
MENTIONED IN THIS ARTICLE
Boston Globe
Bartholomew Nagy
Michael Engel
Murchison
Australia
Earth
Nagy
University of Arizona
Nature
Sagan
Supernova a Key to Solar System's Unique Chemistry
University of Chicago astrophysicists David Schramm and Keith Olive propose that a nearby supernova explosion during the sun's formation seeded the embryonic solar system with heavy elements. This event would make our solar system chemically distinct from much of the Milky Way and may explain anomalies in carbon and oxygen abundances observed today.
MENTIONED IN THIS ARTICLE
Chicago Sun-Times
Chicago
Milky Way
University of Chicago
David Schramm
University
Astronomy and Astrophysics
Keith Olive
Solar System
Schramm
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