We generally believe that there is nothing brighter in our galaxy than the Sun, but what if you're told that there comes a time when even our giant ball of fire gets outshined. Not only just the Sun, the entire galaxy gets lit up by that other source of light, even if only for a brief period.
It happens when a star explodes and emits a burst of extremely luminous radiation that is 5 BILLION times brighter than the Sun. Of course we have never experienced it because these explosions called Supernovas take place just a couple of times every billion years. But thanks to a YouTube video published by the National Aeronautics and Space Administration (NASA), now we don't have to be in it to know what happens when stars go through these Supernova explosions.
Using the recordings of its Nuclear Spectroscopic Telescope Array (NuSTAR), the American agency has created a 3D simulation of Cassiopeia A – a supernova discovered in 1947.
The visual illustration shows how stars first slosh around for a while before exploding and creating the bright effect that has been mentioned above.
Check out the NASA's video to know more about it:
So there you have it. One of the greatest celestial mysteries has been solved.
By the way, Supernovas aren't just a fascinating sight for the eye. The radiations they emit actually help the growth of elements such as iron, titanium and gold in our universe.