The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

NASA's Hubble Space Telescope has once again observed the interstellar comet 3I/ATLAS, revealing intriguing details about this visitor from outside our solar system.

NASA reveals the true, bizarre reason for the 3I/ATLAS comet's 16.16-hour pulse. Scientists link the interstellar object's ...

What can be inferred if a comet from another star system accelerates in a manner that our models cannot fully account for? That is the question at the center of the latest storm of scientific ...

Before 3I/ATLAS, the only other confirmed interstellar tourists we've seen were the now-famous, cigar-shaped 'Oumuamua' in ...

The mysterious interstellar object 3I/ATLAS may be seeding the worlds of this solar system with the early stages of life, new scans reveal.

The bright binary star system V Sagittae will flare up multiple times before finally going supernova within the next 100 ...

Cradled in the nose of a high-altitude research airplane, a new NASA sensor has taken to the skies to help geoscientists map ...

As humanity prepares to take its first steps on Mars, a comprehensive report released by the National Academies of Sciences, ...