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In 1969, Neil Armstrong, the first human to enter the moon, is still largely unexplored. That the moon is littered with craters, it is not surprising and even sometimes to see with his own eyes.
Large amounts of metal
However, the largest crater is located at the back of the moon and is therefore invisible to humans. Here, in the South Pole Aitken Basin, more than 2,000 kilometers wide, about four billion years ago, a celestial body of such size had to strike the entire crust.
A new study from Baylor University in Waco now concludes that the remains of a celestial body have been preserved in the basement of the basin. Up to 300 km deep in the lunar mantle are still large amounts of metal. These could come from an iron-nickel core of a large asteroid.
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