It's well established that the universe is expanding, but there's serious disagreement among scientists over how fast it's ...

Close-up measurements from NASA’s Parker Solar Probe are giving scientists an unprecedented look at how the solar wind gains ...

NASA has explored the space beyond Earth and our solar system with spacecraft like Voyagers 1 and 2, and how we’ve discovered ...

On a research trip up to a cemetery in Eldora, Amy Davis and Rikki Diana Pauley saw something strange in the night sky. “She notices it first, and then it blinked,” Davis said. “Almost ...

Since the 1990s, astronomers have found a handful of other dwarf planets in the belt, such as Eris and Sedna, along with ...

The photo was captured on Feb. 11, as SpaceX's Crew-12 Dragon spacecraft "Freedom" and its Falcon 9 rocket (closest to the camera) sat on the pad at Space Launch Complex 40, ready to transport a ...

A dazzling new Hubble image peels back the layers of the mysterious Egg Nebula, a rare and fleeting phase in a Sun-like star’s death just 1,000 light-years away. Hidden inside a dense cocoon of dust, ...

CAPE CANAVERAL, Fla. — A quartet of astronauts have reached orbit and are on their way to support the skeleton crew of three left behind after the first-ever medical evacuation from the International ...

A fresh analysis of Comet 41P/Tuttle-Giacobini-Kresák observations suggests it abruptly reversed its spin after its last ...

General relativity helps explain the lack of planets around tight binary stars by driving orbital resonances that eject or destroy close-in worlds. This process naturally creates a “desert” of ...

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...

Astronomers have flagged a tantalizing candidate for a frozen twin of Earth, a world known as HD 137010 b that appears to ...