The asteroid, known as 2022 RD2, belongs to a rare class of space rocks called Arjunas. These objects travel around the sun ...

How do we know when the next full moon is? While a full moon calendar comes in handy, learning the moon phases will help you predict when the next full moon will be. Another plus? You'll better ...

Are we alone? It is one of the universe's biggest questions. And as my co-host, Mary Louise Kelly, found out, the answer could be in our own cosmic backyard. MARY LOUISE KELLY, BYLINE: Saturn's ...

The recently spotted asteroid 2025 PN7 appears to be the source of the rumor mill about Earth's supposed second moon. Earth has several quasi-moons that get their name due to the fact that they ...

The sun's gravity will pull the moon farther away from Earth than it's been in over five years on Nov. 19, though it'll be ...

That’s also true for the other moons that provide the gravitational stress. As a result, the internal oceans may actually ...

Two of Uranus' moons may be home to active oceans hidden beneath their surfaces. The new finding was uncovered when astronomers looked back at radiation data that Voyager 2 captured about the planet ...

REBEL MOON: (L-R) Doona Bae as Nemesis, Ray Fisher as Bloodaxe, Staz Nair as Tarak, Michiel Huisman as Gunnar, Sofia Boutella as Kora, Charlie Hunnam as Kai, E. Duffy ...

NPR's Mary Louise Kelly talks with astrobiologists Catherine Neish and Kevin Hand about missions to Saturn's moon Titan and Jupiter's moon Europa, to search for conditions that could support life. Are ...