MURCHISON |
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| The murchison carbonaceous chondrite (type II, CM2) fell in Victoria Australia
September 28, 1969. A shower of stones weighing over 100kg fell over an area of
over 5 square miles. This very rare meteorite surprised scientists when it was
discovered that Murchison contained amino acids which are not present on Earth.
Amino acids are "the building blocks of life" and some theorize that life on
Earth was "seeded" by meteorites. The Murchison meteorite contains about
12% water and is considered by many to be of cometary origin. A few of the many online references about the Murchison meteorite: Were Meteorites the Origin of Life on Earth? Cosmic-Ray Exposure Ages of Large Presolar SiC Grains in Murchison Meteorite (PDF File)Meteorite Crammed with 'Millions' of Organic Compounds Our Smashing Solar System (PDF File) |
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