By Pallab Ghosh
Scientists have discovered an astronomical object that has never been observed before.
The object is more massive than collapsed stars, known as “neutron stars”, but lighter than black holes.
Such “black neutron stars” were not thought possible and will mean ideas for how neutron stars and black holes form will need to be rethought.
The discovery was made by an international team using gravitational wave detectors in the US and Italy.
Charlie Hoy, a PhD student from Cardiff University, UK, involved in the study, said the new discovery would transform our understanding.
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