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

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

For centuries, Betelgeuse — one of the brightest stars and the closest red supergiant to Earth — appeared to shine alone in the night sky, but an elusive stellar partner hiding in plain sight has ...

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 ...

NSF-funded ‘Alopeke instrument on the Gemini North telescope, one half of the International Gemini Observatory, partly funded by the U.S. National Science Foundation (NSF) and operated by NSF NOIRLab, ...

Given 3I/ATLAS' highly eccentric orbit, this will be its one and only visit to our solar system, as its trajectory does not ...

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

Gemini North, part of the International Gemini Observatory operated by the National Science Foundation’s NOIRLab, is back observing the night sky following the repair and refurbishment of its ...

The Gemini North Telescope, one half of the International Gemini Observatory, studies the skies above Maunakea, a mountain in Hawaii. Its twin, the Gemini South Telescope, is based in the ...