Interstellar comet 3I/ATLAS — just the third such object ever confirmed to have entered our solar system — flew past Mars ...

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

Comet 3I/ATLAS, an interstellar object, passed by Mars last week, rare images were captured by the ExoMars Trace Gas Orbiter ...

Scientists think Uranus’s moon Ariel once had a hidden ocean beneath its icy shell. The moon’s orbit stretched enough to ...

NASA's Mars Perseverance rover has seemingly managed to snap images of interstellar object 3I/ATLAS as it made its flyby of ...

A new peer-reviewed study finds that early planet formations were assembled from fragments of earlier bodies within the Solar System.

The images offer the closest view yet of comet 3I/ATLAS, famous for being only the third known interstellar object to pass ...

Witnessing a meteor, or \"shooting star,\" is a dazzling event caused by tiny space rocks burning up in Earth's atmosphere.

I/Atlas trajectory has been flagged as anomalous. Avi Loeb says the alignment of a 33 billion tonne object with the ecliptic ...

An artist's rendering of two comets that will make a near-earth passes later this month. The first, known as SWAN, will pass ...

Comet SWAN will make its closest approach to Earth — coming within 24 million miles of us — on October 20, while comet Lemmon ...

Despite data suggesting interstellar object 3I/ATLAS is simply a comet, Harvard astronomer Avi Loeb still thinks something is ...