Long-time Slashdot reader fahrbot-bot summarizes an article from LiveScience: There’s a giant asteroid somewhere out in the solar system, and it hurled a big rock at Earth. The evidence for this mystery space rock comes from a diamond-studded meteor that exploded over Sudan in 2008. NASA had spotted the 9-ton (8,200 kilograms), 13-foot (4 meters) meteor heading toward the planet well before impact, and researchers showed up in the Sudanese desert to collect an unusually rich haul of remains. Now, a new study of one of those meteorites suggests that the meteor may have broken off of a giant asteroid — one more or less the size of the dwarf planet Ceres, the largest object in the asteroid belt — that formed in the presence of water under intermediate temperatures and pressures. The mineral makeup of these space rocks offers clues about the “parent asteroid” that birthed a given meteor, researchers said in a statement.
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Source:
https://science.slashdot.org/story/20/12/27/1831227/an-asteroid-the-size-of-a-dwarf-planet-is-lurking-in-our-solar-system?utm_source=rss1.0mainlinkanon&utm_medium=feed