Gone in a flash: supernova burns up in just 25 days
Astronomers have witnessed a blazing supernova explosion that faded away 10 times faster than expected.
A supernova is the violent death of a massive star, typically occurring when it exhausts its fuel supply and collapses under its own weight, generating a powerful shockwave that blasts light and material out into space.
Supernovae often blaze so brightly that they briefly outshine all the other stars in their host galaxy. They show off for months on end — in 1054, a supernova could be seen during the day for three weeks and only disappeared completely after two years. Its remnants are known as the Crab Nebula.
https://cosmosmagazine.com/space/gone-in-a-flash-supernova-burns-up-in-just-25-days
