Learn about the recently discovered trans-Neptunian object that may eventually join Pluto as a dwarf planet, found at the ...

The mystery of how planets and icy objects formed in the farthest reaches of our solar system just took an exciting turn. A ...

At long last, particles of water–ice have been discovered in the frozen Kuiper Belt of another star. The discovery, made by ...

A small team led by Sihao Cheng, Martin A. and Helen Chooljian Member in the Institute for Advanced Study's School of Natural ...

There’s a new frozen oddball orbiting the Sun, and it’s not your average space rock. It’s a planet—a minor one, to be ...

At the very edge of our solar system, beyond the grasp of Neptune and even past the icy sprawl of Pluto’s domain, a new ...

On May 21, the International Astronomical Union’s Minor Planet Center announced the discovery of 2017 OF 201, which, because ...

"Basically, we detected a water–ice reservoir." At long last, particles of water–ice have been discovered in the frozen Kuiper Belt of another star. The discovery, made by the James Webb Space ...

From gravel-size meteoroids to mountain-size asteroids and even visitors from other star systems, space is packed with ...

NASA's James Webb Space Telescope has made the first-ever and long-anticipated detection of ice outside of our own solar ...