Mundane wayward space rock, or extraterrestrial visitor? Astronomers believe that our solar system's latest and only third ...

In June, scientists spotted an odd object hurtling toward our solar system. 3I/ATLAS is likely the size of Manhattan. Unlike ...

Harvard's Avi Loeb claims mysterious interstellar object 3I/ATLAS could be nuclear-powered alien technology. Sparks debate ...

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system. The Hubble ...

An interstellar comet spotted by NASA is headed for our solar system, showing up near Earth later this year, but it's another ...

The interstellar object 3I/ATLAS has sparked debate among astronomers since its discovery, and some are exploring whether it ...

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have entered our solar system, a comet-like object known as 3I/ATLAS.

Is it an alien spaceship or an ancient comet? That’s the question puzzling UFO enthusiasts, NASA, and the European Space Agency since an interstellar visitor entered our solar system last month ...

Hubble telescope captures third interstellar visitor 3I/ATLAS showing active dust coma racing through solar system.

The Hubble Space Telescope has captured a stunning image of a high-speed comet traveling through our solar system. Scientists ...

As the comet 3I/ATLAS through our Solar System, NASA's Hubble Space Telescope has captured the best look yet at the interstellar visitor.