This enormous chain of hundreds of galaxies—a cosmic filament—is twisting through space 400 million light-years away ...

If confirmed, this disappearing act might provide the closest and best observational evidence for the birth of a black hole ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

Things are much bigger outside the solar system.

For decades, astronomers have been watching WOH G64, an enormous heavyweight star in the Large Magellanic Cloud, a galaxy ...