For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

As astronomers study an exoplanet called K2-18b, conflicting research reveals how difficult it is to find evidence of life ...

Albedo II by Catherine Eaton Skinner/Courtesy photo Eastern Poplar by Catherine Eaton Skinner/Courtesy photoSTEP UP GALLERY ...

It’s rare to see a tagline so perfectly summarize the heart of a show like, “We were safer in space.” FX’s sci-fi horror ...

Astronomers have found a rare form of methanol, a type of alcohol, in a planet-forming disk, providing a critical step in understanding how life beyond Earth may form. This result reveals vital ...

A Super-Earth named Kepler-725c has been discovered in the habitable zone of a Sun-like star, 2,400 light-years away.

"When I first imagined a typical Swedish house standing on the moon, I instantly felt the power of the image, but also its impossibility." ...

Scientists have discovered a giant planet called TOI-6894b, orbiting a star that should be far too small to have formed it. The discovery could further challenge theories of planet formation.