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

The star used to be one of the brightest star in the neighboring Andromeda galaxy.

Astronomers have witnessed a rare cosmic event: a massive star that didn’t explode in a spectacular supernova, but instead ...

He came up with a new one, called the Late-Transition Interacting Thawer (LTIT) model, which models how dark energy could "thaw" after a certain amount of time after the universe started and is slowly ...

The world’s largest neutrino detector just got even more powerful after scientists successfully deployed ...

Add Yahoo as a preferred source to see more of our stories on Google. a spiral galaxy in deep space an animation showing a bright star appearing in a spiral galaxy During the last few days, ...

An international team of astronomers has conducted photometric and spectroscopic observations of a recently discovered ...

An artist’s illustration depicts silicon, argon and sulfur releasing from a massive star. - Adam Makarenko/W. M. Keck Observatory Astronomers have observed what they are calling a new type of ...

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