Astronomers have observed the longest supernova ever seen. The mysterious explosion might have annihilated its star, leaving nothing behind.

Scientists think this "incredible mystery" may be the first observation of a rare type of...

The supermassive black hole at the centre of our galaxy suddenly lit up brighter than scientists had ever seen, and nobody knows why

Scientists think every galaxy has a supermassive black hole at its centre, and ours just...

'No image will surpass this': Hubble telescope astronomers created a stunning picture of the deep universe with 16 years' worth of photos

Researchers estimate the Hubble Space Telescope image includes 265,000 galaxies, some of...