I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some ...

The enigma of the intruder about the same size as Manhattan Island is making astronomers rethink what they know about cosmic ...

What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

The new Vera C. Rubin Observatory captured a video of Comet 3I/ATLAS zipping through space during its testing phase. - RubinObs / NOIRLab / SLAC / NSF / DOE / X screenshot A new telescope built to to ...

3I/ATLAS is named for its status as one of three interstellar objects ever discovered in our cosmic neighborhood, as well as ...

The comets A6 (Lemmon) and R2 (SWAN) are visitors from the chilly fringes of our solar system, and could even be visible at ...

Astronomers announced the discovery of a potential interstellar object passing through our solar system, provisionally named A11pl3Z. First detected by the Asteroid Terrestrial-impact Last Alert ...

The study results come from computer simulations of a massive cloud of plasma erupting from the sun and moving through the ...

Discovery: On July 2, 2025, astronomers confirmed Comet 3I/ATLAS, marking only the third interstellar object (ISO) ever detected passing through our Solar System, after 1I/ʻOumuamua (2017) and ...