Scientists expect Betelgeuse to go supernova in a violent explosion within 100,000 years. This image made with the Hubble Space Telescope and released by NASA on Aug. 10, 2020, shows the star ...

Betelgeuse is one of the brightest stars in Earth’s night sky, so its dimming – which lasted for a few months – was noticeable through observatories and backyard telescopes alike. Recovering ...

As Betelgeuse burns through fuel in its core, it has swollen to massive proportions, becoming a red supergiant. The massive star is 1 billion miles (1.6 billion kilometers) in diameter.

Betelgeuse, one of the brightest ... If you train a telescope on Betelgeuse for weeks, you'll see it dimming, ... a companion star that plows through dust clouds enveloping Betelgeuse.

Betelgeuse is of great interest to astronomers since the star dimmed substantially from late 2019 through 2020, likely due to a major ejection of gas and dust.

As Betelgeuse burns through fuel in its core, it has swollen to massive proportions, becoming a red supergiant. The massive star is 1 billion miles (1.6 billion kilometers) in diameter.

"We've never before seen a huge mass ejection of the surface of a star. We are left with something going on that we don't completely understand," an astronomer said.

The red supergiant Betelgeuse, a colossal star in the Orion constellation, experienced a massive stellar eruption -- the likes of which have never been seen before, according to astronomers ...