"This was many times more energetic than any similar event and more than any known explosion powered by the collapse of a ...

The supermassive black hole sitting at the heart of our galaxy is considered to be a slumbering giant. However, an ...

It's the last clearly observed supernova in the Milky Way, Gassel said.

A black hole has shredded a massive star like it was "preparing a snack for lunch," according to a team of scientists at the ...

NASA has released its longest-ever time-lapse from the Chandra X-ray Observatory, capturing the expanding remains of Kepler’s Supernova, one of the most powerful stellar explosions ever witnessed by ...