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Why are neutron stars so heavy?

14 Nov 2017, 15:03 UTC
Why are neutron stars so heavy? NASA
(200 words excerpt, click title or image to see full post)

Neutron stars are created when a star around eight to ten times the mass of our Sun runs out of fuel. The outward pressure generated by fusion reduces rapidly, allowing gravity to pull the star in on itself and trigger a supernova, where the outer layers of a star’s atmosphere get blown into space.

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