00:00What if there are stars stranger than neutron stars?
00:05Scientists think they might exist, and they're called quark stars.
00:10When a massive star collapses, the pressure can become so extreme
00:14that even neutrons may break apart into tiny particles called quarks.
00:20If quark stars are real, they could be among the densest objects in the universe.
00:24A single spoonful might weigh billions of tons.
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