Oddly viscous stars could be impersonating black holes | New Scientist

Calculations suggest stars that are very viscous could reflect gravitational waves and produce signals very similar to those produced by black holes

Is that gravitational wave signal coming from a black hole, or something even stranger? titoOnz / Alamy Exotic viscous stars could reflect ripples of space-time, mimicking the signals we observe from black holes . Read more A new kind of hidden black hole may explain the mystery of dark energy Since 2015, researchers have been learning how to see the contents of the universe by tracking not just light waves but also gravitational waves: ripples in the fabric of the universe. Jaime Redondo–Yuste at the Niels Bohr Institute in Denmark and his colleagues have now shown that, like waves of light,

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