The solar system is hurtling through space at incredible speeds toward a mysterious object called the Great Attractor.

During a special observation run from Jan. 15 to Jan. 22, the Transiting Exoplanet Survey Satellite ( TESS) repeatedly ...

Astronomers suspect that a massive metallic cloud swirling in a nearby star system could be hiding a giant planet or dwarf ...

The discovery of the interstellar comet 3I/ATLAS was supposed to be a triumph of open science, a rare chance to study ...