'A tiny puzzle piece in the wider picture.'
Was the Moon formed when a young Earth was hit by another planet? Crystals collected by Apollo astronauts have proved the Moon is much older than thought – and may have even helped answer the biggest lunar mystery. How did the Moon get here? The Moon, Earth’s natural satellite, determines the length of an Earth day and gives us tides. But no one is quite sure where it came from.
’ Many mysteries about the Moon still remain This means that if the team could reveal the age of the crystals, they could reveal the point at which the Moon cooled and became fully formed. To do this, the team used radiometric dating, which involves counting the number of uranium and lead atoms found in the crystals. Over a very specific time, uranium decays into lead, so by counting the ratio of uranium to lead in the crystals, they can be aged precisely.
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