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

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

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 have finally imaged the long theorized companion star of Betelgeuse, solving a mystery regarding its dimming that ...

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

Comet 3I/ATLAS is expected to make its closest pass by the Sun on Oct. 30, when it will fly 130 million miles inside the ...

Interest in Betelgeuse intensified during its great dimming in 2019-20 and subsequent resurrection. Among several ...

The Gemini North telescope in Hawaii recently snapped a close-up of the comet that's captured the world’s attention.

Since at least the time of the ancient Egyptians, people across the world have gazed up in awe at Betelgeuse, one of the ...

Astronomers have confirmed the existence of a companion star in a tight orbit around Betelgeuse, resolving a long-standing ...

Astronomers unveiled a striking view of the new interstellar visitor 3I/ATLAS on its journey toward the inner solar system.