Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An asteroid in our ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The red supergiant ...

In a new image captured with the European Southern Observatory’s Very Large Telescope ... The big question surrounding Betelgeuse is whether this fading is a sign the star will go supernova ...

In early 2019, the red supergiant Betelgeuse began to dim. Some observers predicted that the dimming was a harbinger of the star’s end: That it was the first warning sign that Betelguese was ...

The team concluded that some time before Betelgeuse started to dim, the star ejected a large gas bubble that moved ... coauthor of the new study, captured signs of dense, heated material moving ...

Back in June, we reported on a likely explanation for the strange, dramatic dimming of Betelgeuse ... scientists has found evidence of a large, dark, cooler spot on the star—consistent ...

Now new research has shown that the most likely explanation of the dimming is large star spots on Betelgeuse's surface, which have caused it to dim. Betelgeuse is usually one of the brightest ...

This comparison image shows the star Betelgeuse before and after its unprecedented dimming. The observations, taken with the SPHERE instrument on ESO’s Very Large Telescope in January and ...

That raised lots of questions about what was going on with the giant, with some experts speculating that because of Betelgeuse's size and advanced age, the strange behavior was a sign of a ...

Scientists have been studying a distant star called Betelgeuse, which is a red supergiant star in the constellation Orion. Using the Very Large Telescope (VLT), the ESO has been able to take ...