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Most carbon-rich asteroids never make it to Earth—and now we know why
A study of thousands of space rocks may explain why a common type in space is so uncommon on our planet.
“We’ve long suspected weak, carbonaceous material doesn’t survive atmospheric entry,” said Hadrien Devillepoix, a researcher at Australia’s Curtin Institute of Radio Astronomy and co-author of the paper, in a university release. The team analyzed nearly 8,000 meteoroid impacts and 540 potential falls from 19 different observation networks around the globe to understand why carbonaceous asteroids are so rare on Earth. “Carbon-rich meteorites are some of the most chemically primitive materials we can study—they contain water, organic molecules and even amino acids,” said Patrick Shober, a researcher at the Paris Observatory and co-author of the paper, in the same release.
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