A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in our solar system.

With its initial satellites deployed, Amazon joins a high-risk game of low Earth orbit dominance with SpaceX, China, and the ...

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

In the cold, distant reaches of the Solar System, far beyond Pluto, astronomers have just identified what could be a new ...

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 ...

The successful deployment marked more than the birth of a new internet service provider. It was the opening shot in a battle over the future of global connectivity, one that pits Amazon founder Jeff ...

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

The presence of water-ice in the debris disk around a young star could have helped facilitate the growth and development of ...

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

Astronomers sing the James Webb Space Telescope have made an unequivocal detection of frozen water in another star system for ...

This week, an old astronomical controversy is renewed as researchers present new evidence for a hidden "Planet X" in our solar system.

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