PHOENIX — Like a motorboat doing doughnuts in a lake, Betelgeuse’s companion star leaves a wake in the giant star’s ...

Ignoring interference from the occasional dusty sneeze, Betelgeuse's light seems to vary according to two distinct cycles.

Astronomers have previously speculated that the red supergiant, once thought to be on the brink of supernova, has a companion ...

NASA’s Hubble data shows a wake of dense gas around Betelgeuse, offering the clearest proof yet of a long-suspected companion ...

Astronomers and scientists love Betelgeuse because it shines so brightly. While most stars appear as tiny points of light, ...

The gas around the red giant star Betelgeuse revealed the effects of a newly found companion star, Siwarha, likely circling ...

The bizarre dimming patterns of Betelgeuse, an enormous red supergiant star in the constellation Orion, have bewildered ...

At the 247th meeting of the American Astronomical Society, this one held in Phoenix on January 4-8, Andrea Dupree of the Center for Astrophysics|Harvard & Smithsonian presented a talk entitled, ...

Betelgeuse is one of the best-known stars in the night sky, as well as the easiest to find. New examinations of this behemoth star suggest it is both smaller — and closer — than astronomers believed.

Learn how Betelgeuse's atmosphere has been altered by its companion star, which has left behind a trail of expanding gas.

The yearslong dimming and brightening pattern of the huge star Betelgeuse (don’t worry—that’s just the second time we’ve said it!) may be due to a much tinier star orbiting the red supergiant, a team ...

The dimming of Betelgeuse seen at the end of 2019 and the start of 2020 explained — the red giant star “sneezed.” Betelgeuse dimmed in the final few months of 2019, perplexing both professional and ...