The red giant phase is pretty crazy. The star's outer atmosphere can expand to hundreds of times its initial size; some ...

An international team of astronomers reports the discovery of a new extrasolar world orbiting a nearby star known as HD 86728 ...

The first rocky planet ever spotted orbiting a burned out star called a white dwarf offers a glimpse of what may be in store ...

Beyond our solar system, countless alien worlds of lava, ice, water and noxious gas swirl through the cosmos. Here are some ...

The James Webb Space Telescope has not spotted aliens 10 light years away as some conspiracy theories suggest.

(390 million mi) from Earth, underneath the cold seas of Europa, a horrifying, and vastly intelligent creature lurks. Can our ...

The rumor claimed that JWST observed the object changing its trajectory, implying it was some sort of spaceship.

The first rocky planet ever spotted orbiting a burned out star called a white dwarf offers a glimpse of what may be in store for Earth billions of years from now -- showing it is possible our ...

Astronomers listened for radio signals emanating from planets in the TRAPPIST-1 system, but found no evidence of any ...