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Australian Rock Determined To Be Oldest Material Formed On Earth
2014-02-24 13:04:03

[ Watch the Video: The Oldest Rock On Earth ] Lee Rannals for redOrbit.com - Your Universe Online Researchers, publishing a paper in the journal Nature Geoscience, say a rock in Australia is helping to paint a picture of how our planet became habitable 4.4 billion years ago. The team found data from a tiny fragment of zircon that confirms the Earth’s crust first formed 4.4 billion years ago, which is just 160 million years after the formation of the Solar System. John Valley,...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'