Thomas Mulligan explains why blue supergiant stars live fast and die in spectacular cosmic explosions. Donald Trump's approval rating fades after "big, beautiful bill" Why aren’t Italians as obese as ...

A red supergiant star transitions into a type II supernova in this animation. Credit: W. M. Keck Observatory/Adam Makarenko | ...

Bluish-white Regulus in Leo is moving toward the western horizon and sets around 10 p.m. in mid-July, followed a couple of ...

Many red supergiant monster stars lurk in a Milky Way cluster astronomers have discovered with the Gaia space telescope. The cluster, Barbá 2, could help understand why some stars become black holes.

Venus continues to be the “Morning Star” in the east before dawn, albeit it has become dimmer — but still bright — as it ...

The star is a red supergiant (like the famous Betelgeuse) and it sits in the Large Magellanic Cloud, a dwarf galaxy that contains some 30 billion stars.

When the bright, red supergiant star Betelgeuse blew its top in 2019, the Hubble Space Telescope and other observatories were there to see it. Through this surface mass ejection, Betelgeuse ...

Supergiant Star Blew Its Top in Violent Explosion Betelgeuse also experiences a second kind of heartbeat known as a “long secondary period,” or LSP, which lasts roughly six years (2,170 days ...

This illustration plots changes in brightness of the red supergiant star Betelgeuse, following the titanic mass ejection of a large piece of its visible surface. The escaping material cooled to form a ...

The red supergiant star is about 2,000 times larger than the sun. Astronomers have taken a close-up photo of a star outside our own galaxy, the Milky Way, for the first time, the European Southern ...

The star Betelgeuse is a red supergiant that is destined to explode, but astronomers don't know exactly when the famous star will collapse. Here's what researchers do know.

The mystery object, located just a short 15,000 light-years from Earth in our Milky Way galaxy, was spotted emitting unusual pulses.