A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?

The comet, named 3I/ATLAS, is only the third confirmed interstellar object ever seen in our solar system. That means it came from another star system entirely. At first, some speculated it could be an ...

A strange 200 million-year-old object with the mass of a planet has been discovered 20 light-years from Earth, outside our solar system. The "rogue," as it's referred to by researchers, is producing ...

A mysterious "rogue" planet has been observed gobbling six billion tons of gas and dust a second—an unprecedented rate that ...

In June, researchers using the European Southern Observatory’s Very Large Telescope in Chile noticed that this rogue planet ...

Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, ...

Astronomers have discovered that a "rogue" planet is going through a massive growth spurt and it's eating everything around ...

What the swirling storms on alien worlds can tell us about the climate on Earth. Damond Benningfield A somewhat alarming new phrase entered the American lexicon when parts of the United States were ...

Astronomers announced Wednesday they have discovered a massive planet orbiting a tiny star, a bizarre pairing that has stumped scientists. Most of the stars across the Milky Way are small red dwarfs ...

The Vezda might be vanquished, but there are more cosmic threats for Captain Pike and the Enterprise crew to confront in 2026 ...

Technological limitations for manufacturing large, round telescopes has experts considering unconventional shapes to improve our search for habitable worlds.