A record-breaking gravitational wave signal let scientists "listen" to a distant black hole merger and put Einstein's gravity to its toughest test yet.
Energy-momentum distribution remains a fundamental yet challenging aspect of theoretical physics. In general relativity, the localisation of gravitational energy is obscured by the equivalence ...
A STAR-DESTROYING black hole is releasing a jet that’s so high-energy it’s one of the “brightest things ever detected in the universe”. Experts say that the black hole is ...