Supernova to superfluid

Supernova to superfluid

Neutron stars may be cooled by frictionless liquid

By Devin Powell, 14:53 PM February 4, 2011

Neutron stars, second only to black holes and pints of Guinness as the densest objects in the Universe, may have liquid in their cores, observations of a dead star shrouded in the debris of a distant supernova suggest. Two separate teams of scientists say that a frictionless state of matter called a superfluid is the only reasonable explanation for temperature changes recently observed in the youngest known neutron star.

“This the first direct evidence for superfluidity in neutron stars,” says...

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