Saturn’s largest moon has long looked like a frozen time capsule of early Earth, but a new set of measurements has upended ...

It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...

The most startling revelation regarding 3I/ATLAS concerns its age. Associate Professor Michele Bannister of the University of ...

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

While many sci-fi hits have spawned extended franchises, these standalone works prove that science fiction movies can leave ...

Unlike the comets that call our solar system home, 3I/ATLAS is a cosmic nomad on a hyperbolic trajectory — a one-time flyby ...

An international team of researchers pointed the largest single-dish radio telescope in the world at 3I/ATLAS.

If you spotted a bright white light trail in the western Colorado sky on Friday, Jan. 2, we regret to inform it wasn’t aliens ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Three symmetrical jets jutting out of interstellar object 3I/ATLAS are showing up in Hubble observations, puzzling astronomer ...

Hubble's latest images of interstellar comet 3I/ATLAS reveal sustained, jet-like eruptions and a carbon dioxide-rich coma ...

New images from NASA 's Hubble Space Telescope have revealed an enormous, oddly shaped disk of gas and dust around a single ...