How could a piece of the moon become a near-Earth asteroid? Researchers have an answer

A team of astronomers has found a new clue that a recently discovered near-Earth asteroid, Kamo'oalewa, might be a chunk of the moon. They hypothesized that the asteroid was ejected from the lunar surface during a meteorite strike—and they found that a rare pathway could have allowed Kamo'oalewa to get into orbit around the sun while remaining close to the orbits of the Earth and the moon.