Large Mysterious Mass Discovered In Moon's Largest Crater

A large mass of unknown material has been discovered on the largest crater on the Moon and scientists aren't sure what it is.

According to an April 2019 study published in the journal Geophysical Research Letters, the researchers believe the mass could contain metal from an asteroid that crashed into the celestial satellite, which resulted in the aforementioned crater, known as the Lunar South Pole-Aitken basin.