Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

The monsterous 85-mile-wide comet C/2014 UN271 isn't just the largest icy rock in the Oort Cloud, it's the second most ...

Researchers now appreciate that gas planets are more complex than first thought. New findings have implications for our ...

"The extraordinary results are an essential step toward understanding the initial conditions that lead to the formation of ...

1 of 9 This digital collage brings together our solar system and points beyond in one view. Illustration by NASA/JPL Too small to be called planets, asteroids are rocky chunks that also orbit our ...

The dwarf planet's existence also opens the likelihood of many more like it in our solar system waiting to be found. From our morning news briefing to a weekly Good News Newsletter, get the best ...

There has been a lot of back and forth about the existence of a mysterious ninth planet, often referred to as "Planet Nine" ...

14.61 x 12.36 in. (37.1 x 31.4 cm.) ...

June 3, 2025 — Astronomers have revealed new research showing that millions of new solar system objects are likely to be detected by a brand-new facility, which is expected to come online later this ...

Hycean worlds are also called ocean worlds. They're planets covered in oceans that also have thick hydrogen atmospheres.

NASA launched two 12-inch gold-plated copper disks filled with the sounds of children's laughter, heartbeats, and bird calls.

The researches say that the Hycean Habitable Zone (HHZ), when compared to the terrestrial habitable zone, may include smaller ...