Gravitational waves could prove the existence of the quark-gluon plasma

Computer models of merging neutron stars predicts how to tell when this happens Goethe University Frankfurt Neutron stars are among the densest objects in the universe. If our Sun, with its radius of 700,000 kilometres were a neutron star, its mass would be condensed into an almost perfect sphere with a radius of around 12…

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New method may resolve difficulty in measuring universe’s expansion

News Release 8-Jul-2019 Neutron star mergers can provide new ‘cosmic ruler’ National Radio Astronomy Observatory Astronomers using National Science Foundation (NSF) radio telescopes have demonstrated how a combination of gravitational-wave and radio observations, along with theoretical modeling, can turn the mergers of pairs of neutron stars into a “cosmic ruler” capable of measuring the expansion…