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.

Earth is set to gain a temporary mini-moon this autumn with the arrival of asteroid 2024 PT5. The asteroid, measuring about 33 feet wide, will orbit Earth from September 29 to November 25 before leaving its gravitational pull.

An Arjuna asteroid, discovered in August, will become a "mini-moon" event for nearly two months from Sept. 29 to Nov. 25.