Radio images show the supergiant's atmosphere recovering from its dramatic dimming, while a companion plows through its outer ...

The well-known star Betelgeuse has a mysterious houseguest—and it's shaking the rafters, rattling the pipes and slamming the ...

Betelgeuse has recovered from the mysterious dimming that caught astronomers’ attention in 2019 and 2020. New radio ...

Something mysterious is disturbing Betelgeuse, and astronomers believe they have identified the culprit: a hidden companion star called Siwarha. New radio observations reveal that the smaller star may ...

This artist’s illustration shows the smaller, hotter companion star Siwarha creating a wake-like disruption in Betelgeuse’s ...

The well-known star Betelgeuse has a mysterious houseguest — and it’s shaking the rafters, rattling the pipes, and slamming ...

Add Yahoo as a preferred source to see more of our stories on Google. This artist’s concept shows the red supergiant star Betelgeuse and a companion star orbiting within the supergiant’s tenuous outer ...

A possible hidden companion could be behind the strange activity seen around Betelgeuse, according to new research.

Alex Pereira's legacy stakes, Justin Gaethje's future and more are among the list of stories that need answers in the final months of 2026. Amelia Earhart team reach 'critical phase' of plane hunt in ...

Scientists are investigating the role of Siwarha in the unusual activity seen around the giant star Betelgeuse.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Go outside tonight when it gets dark and look to the ...