Dive into NASA's ATLAS system as interstellar 3I/ATLAS nears Sun on 29 Oct 2025—no Earth hit, but astrometry campaign probes ...

Though harmless itself, its passage through the solar system is helping researchers test the systems, partnerships and knowledge needed to keep Earth safe.

Earth asteroid that had been hidden in the sun’s glare, marking a significant advancement in planetary defense. This ...

What: Comet 3I/ATLAS reached perihelion on October 30, 2025. This special SETI Live explored what scientists have learned ...

Perihelion is the point on an orbital course that brings a body closest to the sun. C/2025 K1 (ATLAS) is an Oort cloud comet ...

The comet, called 3I/ATLAS, is the third known interstellar object that has come through our solar system. As it flies deeper ...

With help from amateur astronomers, scientists tracked how an asteroid travelled from space, broke up in Earth's atmosphere and sent fiery fragments shooting to the ground, gathering new information ...

Contrary to allegations that 31/ATLAS is potentially hostile alien tech, the Manhattan-sized comet could provide potentially ...

A rare visitor from deep space, comet 3I/ATLAS, is now in our solar system. Scientists worldwide are observing this ...

Some physicists believe that a fifth fundamental force could be the cause of some observational anomalies. A study is investigating ways to closely examine the trajectories of well-documented ...

Astronomers can usually spot "planet killer" asteroids long before they approach Earth. But what if they can't?

A meteorite that broke off 2023 CXI and was found in northwestern France Volunteers search for meterorites in February 2023 in Angiens, France With help from amateur astronomers, scientists tracked ...