Others hypothesize that the incredible pressure compacts the material into more exotic particles or states that squish and deform in unusual ways. Some researchers theorize that neutrons might dominate all the way down to the centre. Yet exactly what happens afterwards, inside these ultra-dense cores, remains a mystery.
Crushing internal pressure - enough to squeeze Mount Everest to the size of a sugar cube - fuses subatomic protons and electrons into neutrons.Īstronomers know that much about how neutron stars are born. This core packs as much mass as two Suns and quickly shrinks to a sphere that would span the length of Manhattan. Most of the stellar matter is thrown far and wide, but the star’s iron-filled heart remains behind. When a massive star dies in a supernova, the explosion is only the beginning of the end.
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