Earth has quietly picked up a new traveling companion, a tiny captured object that astronomers say will loop around our planet for decades before slipping back into deep space. NASA and independent ...

Earth getting mini-moon (temporarily). What to know about asteroid 2024 PT5. Beginning Sunday, Earth's skies will soon have a temporary visitor. On September 29, an asteroid dubbed 2024 PT5 will ...

The moon will soon have a companion in Earth's orbit for a limited time. An Arjuna asteroid will become a "mini-moon" event for nearly two months starting Sept. 29, according to a study published in ...

If you were hoping to see the “mini moon,” you’ve probably been disappointed. But experts say the asteroid was an important milestone in planetary defense research. Though there are hundreds of moons ...

A lot is going on in the skies this fall. You’ll see a powerful solar eclipse in Libra on Oct. 2, a full moon in fiery Aries on Oct. 17, and expansive Jupiter will be retrograde on Oct. 9. Oh, and ...

For the last few months Earth has had a "second moon," albeit a much more diminutive one than our main lunar companion. Unlike the moon, this "mini-moon" was never expected to stick around. The ...

A chunk of space rock that visited near Earth's orbit last year was widely referred to as a "mini-moon." Turns out the lunar-inspired moniker may have been more accurate than we realized. The ...

2024 PT5 is a near-Earth asteroid and is 11 meters in diameter (artist's impression shows a generic asteroid close to Earth). After just under two months in orbit, it's time to say goodbye to an ...

Beginning Sunday, Earth's skies will soon have a temporary visitor. On September 29, an asteroid dubbed 2024 PT5 will become a "mini-moon" of sorts, temporarily entering Earth's orbit for almost two ...