An newly discovered asteroid will be captured by Earth's gravity this fall. The "mini-moon" will spend about two months in Earth's orbit, before being flung back on its normal path around the sun.

The hunk of rock, dubbed 2024 PT5 will fly into Earth's orbit, get caught there from Sept. 29 to Nov. 25 and then go on its merry way out into the solar system. Scientists call such phenomena mini-moons.

"The object that is going to pay us a visit belongs to the Arjuna asteroid belt, a secondary asteroid belt made of space rocks that follow orbits very similar to that of Earth at an average distance to the sun of about 93 million miles (150 million kilometers),