Further studies are needed to determine whether K2-18b, which orbits a star 120 light-years away, is inhabited, or even ...

It is rare to find brown dwarf stars orbiting in pairs, and this pair has an even more unusual exoplanet companion ...

This colorful image of the Helix nebula may mirror what someday could become of our sun and our home planet. Released on ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

NASA has discovered a new world, named Gliese 12 b. It is roughly the size of Earth, lies in the habitable zone, and orbits every 12.8 days.

ANDREWS REPLIES: To answer Scott: If Planet Nine is discovered, I’m confident a probe would eventually be sent to it! But after launch it might take decades for a spacecraft to reach that destination, ...

Combining with one other previously confirmed planet, one of our closest stellar neighbors now has a family of four.

That changed in 2006 when the International Astronomical Union declared that the faraway orb was a dwarf planet due to its location, known as the Trans-Neptunian region, according to NASA.

Pluto isn’t the only dwarf planet in our solar system's outer reaches. Now is an ideal time to look for the egg-shaped Haumea, says Abigail Beall ...

A pair of white dwarfs, located just 150 light-years from Earth, appears doomed to die in a type 1a supernova that will shine ...

This image of the Helix Nebula, released on March 4, 2025, shows a potentially destructive white dwarf at the nebula's center ...

Astronomers have confirmed the existence of four planets orbiting a star less than ... scientists say Barnard's Star, a low-mass red dwarf, was discovered in 1916. Since then, astronomers have ...