#20: What Goes On Inside a Neutron Star
When a giant star explodes, its heavy core may collapse into a super-dense object known as a neutron star. On Earth, a piece of neutron-star material the size of a sugar cube would weigh billions of tons. No laboratory on our planet can reproduce the pressures found inside one. That is what makes neutron stars so valuable to scientists: they push matter to nature’s ultimate structural limit.
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