Crab Nebula reveals gas from ancient supernova explosion Betelgeuse shows late-stage evolution of a massive star Stellar death spreads elements, triggering new star formation ...

An image from NASA's Chandra X-ray observatory shows a glowing hand stretching across the cosmos with its palm and fingers sculpted from the wreckage of a massive stellar explosion. When you purchase ...

The Crab Nebula, one of the most studied remnants of a supernova explosion observed nearly a thousand years ago, has been ...