An illustration of one of the brightest and most energetic supernova explosions ever recorded. Image credit: NASA/CXC/M.Weiss A star that suddenly increases greatly in brightness because of catastrophic explosion that ejects most of it’s mass. The first ever observation of the supernova on earth was by the Chinese astronomers and skywatchers in 185 A.D., which is known as “guest star” that was visible for eight months. Stars are alike lives that dwell on Earth. They are born, live and finally die. The stars having the mass more than 1.40 times the mass of the sun undergoes supernova explosion. Generally, a star is stable because it’s gravitational inward force is balanced by the outward pressure created by the nuclear fusion that takes place in it’s core. But when the core turns i...