Could a frozen traveler from another star system hold secrets about worlds beyond our own? Astronomers think 3I/ATLAS might. This comet, the only third confirmed interstellar object ever detected, ...

It's been one Neptunian year—or about 165 Earth years—since astronomers first observed the most distant planet from the sun.

Recently discovered interstellar comet 3I/ATLAS have been captured using the European Southern Observatory's Very Large Telescope (VLT). The Asteroid Terrestrial-impact Last Alert System (ATLAS) ...

Leaked documents suggest the U.S. secretly tracked interstellar comet 3I/ATLAS for 20 years using the CASSANDRA planetary ...

Comet C/2025 K1 ATLAS, a Kuiper Belt object, broke into three fragments after its Sun approach, with dramatic images from ...

Since comet 3I/ATLAS, the third known interstellar object, was discovered on 1 July 2025, astronomers worldwide have worked ...

Investigating 3I/ATLAS's optical properties reveals distinctive features, crucial for understanding the composition and ...

New footage shows comet C/2025 K1 Atlas splitting into three pieces after coming close to the sun, giving astronomers fresh ...

Comet ATLAS, once anticipated as a bright visitor, has shockingly disintegrated into a 'cloud of debris' after its solar pass ...

The other comet named C/2025 K1 has been seen disintegrating and changing into a cloud of debris in deep space as it heads towards Earth. The comet was detected by the astronomers at the ...

Comet C/2025 K1 (ATLAS) fragmented after its October sun approach, splitting into three pieces. Astronomers captured rare ...

Learn what makes Comet 3I/Atlas, the third interstellar object ever observed entering into our solar system, so significant ...