Earth
Huge 30-kilometre wide meteorite crater found under Greenland glacier
Radar surveys have revealed a crater left when a kilometre-wide asteroid hit Greenland 鈥� and the impact could explain a climate mystery
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Radar surveys have revealed a crater left when a kilometre-wide asteroid hit Greenland 鈥� and the impact could explain a climate mystery
The oldest rocks ever found are over four billion years old and we don鈥檛 know how they formed 鈥� but a massive asteroid bombardment may be responsible