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A 454-gram Sahara meteorite carries pressure evidence of a Moon-sized protoplanet that vanished before Earth finished forming, a new study finds.
New 2025-2026 studies show Earth's solid iron inner core shifting shape, spinning unevenly, and hiding a distinct 650-kilometer inner layer.
The Perseid meteor shower starts this week and peaks Aug. 12 to 13 under a new moon, its clearest run in years and the same night...
NHTSA has given autonomous vehicle developers, including Waymo, until the end of July to fix robotaxis that block firefighters and police.