Asteroid 2024 PT5 didn't stick around for Thanksgiving, but don't be sad. It will be back... but will it ever be a second moon again? For the last few months Earth has had a "second moon," albeit ...

Here’s how it works. This month, Earth will grab itself a second moon in the form of the tiny asteroid 2024 PT5. Unlike the moon, Earth's primary companion which has accompanied our planet for ...