It can be tricky to measure the spin of a black hole, particularly when it's hard to see them, but astronomers have pulled off just such a feat. They've gauged the spins of five supermassive black holes through a combination of data from the Chandra...
X-rays help astronomers detect spinning black holes
It can be tricky to measure the spin of a black hole, particularly when it's hard to see them, but astronomers have pulled off just such a feat. They've gauged the spins of five supermassive black holes through a combination of data from the Chandra...
NASA sure hasn't been having a great time with its telescopes. The Chandra X-ray Observatory has gone into safe mode and halted all its science operations a few days after Hubble shut down due a gyroscope failure. According to the agency, Chandra's t...
Back in 1572, a white dwarf's explosion shone brightly on the sky. It was visible to the naked eye, and astronomers like Tycho Brahe were able to monitor the event despite not having the equipment we do today. We might have missed the chance to see w...
NASA doesn't often compare things to a Death Star, but a phenomenon observed by its Chandra X-ray Observatory apparently qualifies. The composite image above shows a supermassive black hole that is continuously stripping material from nearby stars an...