betelgeuse supernova

Betelgeuse. Before, During and After the Great Dimming

When a prominent star in the night sky suddenly dims, it generates a lot of interest. That's what happened with…

3 months ago

Betelgeuse Versus the Asteroid… What Happened?

A rare occultation of the bright star Betelgeuse by asteroid 319 Leona turned up mixed results.

4 months ago

Betelgeuse is Almost 50% Brighter Than Normal. What’s Going On?

Whenever something happens with Betelgeuse, speculations about it exploding as a supernova proliferate. It would be cool if it did.…

11 months ago

Astronomers Think They Have a Warning Sign for When Massive Stars are About to Explode as Supernovae

A study of red supergiant supernovae suggests they become dim and red just before they day.

2 years ago

Betelgeuse's Mysterious Dimming Solved. It was… Dust

Astronomers have solved the mystery of dim Betelgeuse, and discovered how stardust can form.

3 years ago

A New Study Says That Betelgeuse Won’t Be Exploding Any Time Soon

I have stood under Orion The Hunter on clear evenings willing its star Betelgeuse to explode. “C'mon, blow up!” In…

3 years ago

Past Supernovae Could be Written Into Tree Rings

A new study by CU Boulder geoscientist Robert Brakenridge shows how nearby supernovae could have disrupted Earth's climate in the…

3 years ago

Wow, Betelgeuse Might Be 25% Closer than Previously Believed

In the last year, Betelgeuse has experienced two episodes of dimming. Normally, it's one of the ten brightest stars in…

3 years ago

Betelgeuse Is Bright Again

Everyone's favorite red supergiant star is bright again. The American Association of Variable Star Observers (AAVSO) has been tracking Betelgeuse…

4 years ago

Betelgeuse Is Brightening Again

After an usual period of dimming Betelgeuse is growing brighter. But no supernova yet.

4 years ago