Earth's Atmosphere Came from Outer Space

Subject: Earth's Atmosphere Came from Outer Space Fri Dec 11, 2009 12:19 am

Quote :: A new study finds the gases which formed the Earth's atmosphere – as well as its oceans – did not come from inside the Earth but from comets and meteorites hitting Earth during the Late Heavy Bombardment period. A research team tested volcanic
gases to uncover the new evidence. "We found a clear meteorite
signature in volcanic gases," said Dr. Greg Holland the project's lead
scientist. "From that we now know that the volcanic gases could not
have contributed in any significant way to the Earth's atmosphere.
Therefore the atmosphere and oceans must have come from somewhere else,
possibly from a late bombardment of gas and water rich materials
similar to comets."

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