Interstellar objects are visitors from solar systems beyond our own, and the third ever such object, known as 3I/ATLAS, has ...

Experts confirmed the discovery of a rare interstellar visitor—only the third ever detected—hurtling through our Solar System ...

Betelgeuse companion discovery with Gemini North resolves century-old mystery and opens new doors in red supergiant research ...

Astronomers have discovered a companion star in an incredibly tight orbit around Betelgeuse using the NASA and U.S. National ...

Object 3I/ATLAS will make close approaches to Jupiter, Mars and Venus, which could allow aliens to stealthily plant spy ...

More recently, astronomers have proposed a theory for its volatile nature, which explains the star's seemingly erratic ...

Scientists have long speculated that Betelgeuse, one of the brightest stars in the night sky, is not alone. Now, thanks to ...

Betelgeuse is one of the brightest stars in the night sky, and the closest red supergiant to Earth. It has an enormous volume, spanning a radius ...

Astronomers directly imaged a faint companion star orbiting Betelgeuse, solving a decades-old mystery about its strange ...

Using the Gemini North telescope in Hawaii, astronomers have captured an image of comet 3I/ATLAS, an interstellar object that ...

The findings confirm a long-standing theory first proposed in the early 1900s. More importantly, it sheds new light on how ...

Astronomers have used a novel technique to find evidence of a secret "buddy" star orbiting Betelgeuse, one of the brightest ...