The asteroid 2024 PT5 will leave Earth on Nov. 25 before Thanksgiving after visiting as a second moon, but new analysis shows it may have been born from our original moon and thus from Earth.

An Arjuna asteroid will become a "mini-moon" event for nearly two months starting Sept. 29, according to a study published in the journal Research Notes of the American Astronomical Society.

Previous studies have unearthed chemical signatures in the K-Pg boundary that also implicated a carbonaceous asteroid in the death of the non-avian dinosaurs and about two thirds of all other ...