The Earth is getting a second 'mini-moon' later this month, but it'll only last from Sept. 29 to Nov. 25, researchers say.

Sadly, at just about 10 meters, the mini-moon will be extremely hard to see from Earth, but its presence will be there nonetheless for almost two months. The asteroid, which was discovered on Aug. 7 by NASA, originated from the Arjuna asteroid belt, where it will likely return once it leaves Earth’s orbit.