New X-ray data from NASA’s Chandra telescope reveals Cassiopeia A’s chaotic final hours, showing how dying stars collapse and ...

Red supergiants are known to lose material through strong stellar winds, but not usually on such a massive scale in such a short span of time. One possibility is that the star has a hidden partner. A ...

Astronomers use the Gemini North telescope in Hawaii to capture an image of a companion star orbiting Betelgeuse. - International Gemini Observatory / NOIRLab / NSF / AURA / J. Chu Red supergiant star ...

Astronomers have discovered a vast and expanding bubble of gas and dust surrounding a red supergiant star—the largest structure of its kind ever seen in the Milky Way. The bubble, which contains as ...

Astronomers have observed what they believe to be a never-before-seen companion star orbiting Betelgeuse, a pulsating red supergiant star in the shoulder of the Orion constellation. One of the best ...

A dying star is expelling a vast sphere of dust and gas around it that is about half as wide as our solar system. Astronomers are at a loss to explain it, as there is no known mechanism that could ...

Red supergiant DFK 52 and its surroundings as seen by ALMA. The vast, complex bubble blown by this extreme star is about 1.4 light years across, thousands of times wider than our Solar System. ALMA ...

Astronomers found the Milky Way's largest gas-and-dust bubble, shed by a red supergiant 4000 years ago, raising questions about how the star survived. (Nanowerk News) Astronomers from Chalmers ...