That the universe is expanding has been known for almost a hundred years now, but how fast? The exact rate of that expansion ...

A study using the NASA’s Chandra X-ray Observatory and other X-ray telescopes has revealed that "an exploded star can pose more risks to nearby planets than previously thought." The Chandra team ...

Astronomers report a supergiant star in the Andromeda Galaxy, M31-2014-DS1, collapsed directly into a black hole without a supernova, confirming predictions of failed stellar explosions.

Twinkle, twinkle, little star. How I wonder what you, wait a minute, why are you twinkling so much? Um, guys, that's no diamond in the sky. That looks like a supernova. As much as we love to blow ...

Supernova 1987A appeared in the far-southern constellation of Doradus (the Swordfish), in which the Large Magellanic Cloud is ...

DS1, collapsed into a black hole without exploding, revealing how stars die in silent “failed supernova” events.

In A Nutshell A massive star in the Andromeda Galaxy faded by more than 10,000 times over a decade and vanished from view, ...

That the universe is expanding has been known for almost a hundred years now, but how fast? The exact rate of that expansion remains hotly debated ...

Astronomers are used to dramatic endings. When a massive star dies, it usually explodes ...

The formation of a black hole can be quite a violent event, with a massive dying star blowing up and some of its remnants collapsing to form an exceptionally dense object with gravity so ​strong not ...

An international collaboration using the Low Frequency Array (LOFAR) has published an exceptionally detailed radio sky map, revealing 13.7 million cosmic sources and delivering the most complete ...