Physics
A new kind of hidden black hole may explain the mystery of dark energy
Space-time may hide a bizarre new kind of black hole that causes Einstein’s theory of gravity to fail – and could solve the mystery of dark energy
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Space-time may hide a bizarre new kind of black hole that causes Einstein’s theory of gravity to fail – and could solve the mystery of dark energy
After 25 years in orbit, the Chandra X-ray Observatory is under threat. We need to protect this monument to human ingenuity, argues Chanda Prescod-Weinstein