When most people think of a supernova, they're thinking of a Type II core-collapse supernova. These are massive stars that have reached the end of their time on the main sequence. They've used up ...

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.

An extraordinarily rare, gravitationally lensed supernova may offer a powerful new way to measure the universe’s expansion rate.

Astronomers used Webb to find the star behind supernova 2025pht, revealing how thick dust can hide massive red supergiants.

An international team of astronomers has carried out photometric and spectroscopic observations of SN 2024abvb—a recently ...

Microscopic crystals extracted from meteorites could help settle a debate about the birth of our patch of the Milky Way.

With the Earth moving between the moon and the sun, its giant shadow changing the moon's reflected glow from ivory to a reddish color.

A star thousands of times larger than the Sun just underwent a dramatic transformation that's a prelude to catastrophe.

Astronomers report the rapid transition of WOH G64 from a red supergiant to a yellow hypergiant, based on photometric and spectroscopic observations published in Nature Astronomy.

NASA's James Webb Space Telescope (JWST) has unveiled a striking new photo of the 'Exposed Cranium' Nebula, a celestial structure that, as the nickname implies, bears a strong resemblance to a human ...

One of the largest known stars in the universe underwent a dramatic transformation in 2014, new research shows, and may be preparing to explode. A study led by Gonzalo Muñoz-Sanchez at the National ...

One of our universe's biggest stars has dramatically turned into a rare, yellow 'hypergiant' star, and astronomers aren't ...