Comet 3I/ATLAS, discovered on July 1, 2025, by the ATLAS telescope in Chile, is only the third confirmed interstellar object observed in our solar system. The comet is traveling at an extraordinary ...

COLUMBUS, Ohio — In a cosmic first for this decade, astronomers have identified a mysterious comet from another galaxy — ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Aster G. Taylor is a Ph.D. candidate in Astronomy and Astrophysics at the University of Michigan, Ann Arbor and a 2023 Fannie ...

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

What at first seemed a routine detection of an object travelling through the solar system soon turned out to be anything but. The object’s trajectory revealed it to be a much rarer visitor than first ...

Dubbed 3I/ATLAS, it is blazing through our cosmic cul-de-sac at truly awe-inspiring speeds between the main asteroid belt and ...

The comet was discovered by the NASA -funded Asteroid Terrestrial-impact Last Alert System (ATLAS) survey telescope in Chile on July 1, and it's currently within Jupiter's orbit. According to NASA, it ...

The European Southern Observatory's Very Large Telescope (ESO-VLT) has captured clear images of 3I/ATLAS, a fast-moving interstellar comet that the Sun's gravity can't slow down.

Historically, Earth's rotation has been slowing down over millions of years. Around 1 to 2 billion years ago, a day lasted ...

The comet was identified as interstellar due to its highly eccentric hyperbolic orbit, which is unlike the elliptical orbits of native Solar System objects.

The third object known to have entered the Solar System from interstellar space has an origin unlike either of its ...