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Meteorites Reveal Magnetic Record of Protoplanet Churn

7 days ago   |   By News Center

The meteorite studied in this work, named Miles, weighed 265 kg when it was discovered on a farm in Queensland, Australia, in 1992. This photo shows a 20-centimeter slice of the Miles meteorite loaned by the Harvard Museum of Natural History collection.
If you stumble upon an unusual rock that could be a meteorite, do not place a magnet on it to see if it's magnetic - you'd end up erasing 4.5 billion years of magnetic history. Meteorites are remnants of our solar system's first protoplanets and, in some cases, retain a record of the magnetic fields they've experienced in the distant...
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