Thursday, May 21, 2009

Massive Asteroid Bombardment May Have Helped Life To THRIVE On Earth

Asteroids bombarded Earth 3.9billion years ago but may not have wiped out all life. In fact some bacteria may have thrived

From The Daily Mail:


A heavy bombardment by asteroids the size of Ireland actually helped life to THRIVE on Earth 3.9billion years ago, scientists have suggested.

Many experts had thought the violent pelting by massive asteroids during the period known as the Late Heavy Bombardment would have melted the Earth's crust and vaporized any life on the planet.

But new three-dimensional computer models developed by a team at the University of Colorado at Boulder shows much of Earth's crust, and the microbes living on it, could have survived and may have even flourished in the harsh conditions.

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