Scientists may have discovered the oldest evidence of a meteor hitting Earth

Australian scientists have discovered 3.48 billion-year-old rock fragments that may be the first evidence of a meteorite crash on Earth.

The fragments, known as spherules, may have formed when the meteoroid slammed into the ground, blasting molten rock into the air. This molten rock then cooled and hardened into pinhead-sized pearls that were buried over the eons.

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