What is a supernova?
A supernova explosion is one of the most powerful releases of energy in the universe. When the largest stars run out of fuel and collapse, the implosion of their core rebounds with such power that the resulting explosion outshines entire galaxies for several weeks. All that remains is a tiny dense neutron star, surrounded by an expanding cloud of ultra-hot glowing gas which we see as a beautiful nebula. If the star was particularly massive, then the remains of the core will become a black hole, instead of a neutron star. A supernova explosion can be devastating to neighbouring stars and planets light years away.
Written by Allen Versfeld
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