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A 2-D snapshot of a pair-instability supernovae as the explosion waves are about to break through the star's surface. The tiny disturbances represent fluid instability - in a region where different elements interact and mix. Image Credit: ASIAA/Ken Chen
It takes a lot of raw energy to power a supernova. When the biggest stars die, they can outshine entire galaxies . And while we know that supernovae do happen, we’re not exactly sure what triggers them. Without a source of energy, the collapse of the star becomes unstoppable. But at the last moment, right before total catastrophic breakdown, the intense pressures shove electrons into protons, turning them into neutrons. The resulting giant ball of neutrons , and it’s not exactly clear how and if those neutrinos can assist the explosion.
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