Using new observations from NASA’s Hubble Space Telescope and ground-based observatories, astronomers tracked the influence ...

A multi-observatory study led by the Center for Astrophysics | Harvard & Smithsonian has characterized the impact of a newly ...

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

What makes the star remarkable is its location. Siwarha appears to orbit so close that it never leaves Betelgeuse’s ...

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

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

Researchers found evidence that a companion star may be influencing Betelgeuse, explaining why the star’s brightness changes ...

It will be a spectacular event, but calculating when it will happen is a tricky business. Every now and then, in recent observations, Betelgeuse has grown dimmer or brightened, prompting speculation ...

For decades, astronomers have tracked changes in its brightness and surface features in hopes of figuring out why the star ...

Astronomers have spotted the wake of Siwarha, the elusive companion of Betelgeuse. The trail appears as the binary companion ...

Betelgeuse is one of the brightest stars in the night sky and a familiar landmark in the constellation Orion. It has also ...

Astronomers have confirmed that Betelgeuse has a close companion star, identified through a repeating wake of gas in its atmosphere, offering new insight into how massive stars change and lose materia ...