NASA's SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) mission has mapped interstellar ice at an unprecedented scale. Covering regions in our ...

Interstellar objects like 3I/ATLAS that have been captured in planet-forming discs around young stars could become the seeds of giant planets, bypassing a hurdle that theoretical models have ...

A team of scientists has found the recently discovered "interstellar invader" comet 3I/ATLAS is teeming with water ice. This water could have been sealed in the comet for 7 billion years, which would ...

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our solar system—only the third ever spotted, though scientists suspect many more may slip past unnoticed. The ...

A vast, frozen fog of interstellar ice has been charted across expanses of the Milky Way, poised to supply water to newborn worlds. That’s significant because, as stars form, some of that ice may get ...