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Diamond meteorites may come from a lost ancient planet

发布时间:2017-08-16 06:01:05来源:未知点击:

SEBASTIAN KAULITZKI/SCIENCE PHOTO LIBRARY By Leah Crane Shards of a lost planet from the early solar system may give us evidence of the chaos that surrounded the birth of the terrestrial planets, including Earth. Researchers may have found the first relics of an enormous protoplanet that was smashed up into a type of meteorite we see today called a ureilite. Most of the meteorites we have found on Earth are thought to be bits of asteroids that never grew to be planet sized. Now,