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

On Oct. 3, 2025 the European Space Agency's ExoMars Trace Gas Orbiter turned its eyes toward interstellar comet 3I/ATLAS as it passed close to Mars, capturing imagery of the object (the fuzzy blob at ...

WASHINGTON—The first known interstellar object to pass through our solar system is likely a piece of a Pluto-like planet from another solar system, according to a new study published as a pair of ...

NASA’s Lucy spacecraft, which is investigating a group of asteroids that share Jupiter's orbit around the sun, snapped this image on September 16 as 3I/ATLAS approached Mars. NASA / Goddard / SwRI / ...