How supermassive black holes are formed

Over billions of years, small black holes can slowly grow supermassive by taking on mass from their surroundings and also by merging with other black holes.

Massive star `turned inside out as it exploded`

A new X-ray study of the remnants of an exploded star suggests that the supernova that disrupted the massive star may have turned it inside out in the process.

Scientists find most massive star ever discovered

A huge ball of brightly burning gas
may be the heaviest star ever discovered.