Technically a “temporarily captured object,” 2024 PT5 is a near-Earth asteroid and Earth’s newest mini-moon. This 11-meter diameter near-Earth asteroid — about the same as a London bus — is expected to stay in orbit for a couple of months before resuming its own journey through the solar system on Nov. 25.

Earth's moon will soon have some company — a “mini moon.” The mini moon is actually an asteroid about the size of a school bus at 33 feet (10 meters). When it whizzes by Earth on Sunday, it will be temporarily trapped by our planet's gravity and orbit the globe — but only for about two months.

Earth will capture a miniature, "second moon" this week, according to NASA scientists. The new moon is actually a tiny asteroid dubbed 2024 PT5. It will start orbiting the planet in a horseshoe path and stick around for a little less than two months before escaping Earth's gravitational pull and going back to its regular orbit around the sun.