Lunar guest: Earth is getting a second Moon for two months
Scientists aren't sure if 2024 PT5 is an asteroid. At roughly 10 meters in length, 2024 PT5 is difficult to spot without a telescope. Yet a new study reveals that for the next two months, 2024 PT5 will join our Moon in orbit around our planet, which means Earth will (temporarily) have a second moon, from September 29 to November 25.