Betelgeuse is one of the best-known stars in the night sky, as well as the easiest to find. New examinations of this behemoth star suggest it is both smaller — and closer — than astronomers believed.

Humanity has marveled at the vivid star Betelgeuse for many millennia. Over two thousand years ago, this imperious red object in the constellation Orion caught the eye of the Roman poet Horace: ...

WOH G64 has always been an oddball. It sits in the Large Magellanic Cloud, a small galaxy that orbits the Milky Way, and it ranks among the most extreme red supergiants known.

The night sky might be about to gain a brand-new star thanks to a distant sun exploding violently. This far-distant stellar system is situated around 3,000 light years away from Earth and is usually ...

Astronomers using the James Webb Space Telescope (JWST) have achieved a remarkable first: capturing a detailed view of a red supergiant star just before it exploded as a supernova. The star, located ...

A red supergiant star transitions into a type II supernova in this animation. Credit: W. M. Keck Observatory/Adam Makarenko | mash mix by Space.com's Steve Spaleta ...

One of our universe's biggest stars has dramatically turned into a rare, yellow 'hypergiant' star, and astronomers aren't sure when it will go supernova.

A red supergiant star transitions into a type II supernova in this animation. Credit: W. M. Keck Observatory/Adam Makarenko | mash mix by Space.com's Steve Spaleta Fans Rush to Support Dick Van Dyke ...