18 January 2021
New study looks at how to harness energy from a black hole
... ergosphere and is derived from the Greek word ergon, meaning "work”. Ergospheres are only found around rotating black holes, not stationary ones and these zone are in additional to the event horizon – the "point of no return” – an area...
March 2016
Gravitational waves provide new window on the universe
... by Livingston. Another interesting parameter extracted from the data is that the final black hole associated with GW150914 is spinning. Rotating black holes were predicted theoretically in 1963 by Roy Kerr, a skilled mathematician who discovered the...
23 February 2016
Researchers probe black-hole mergers with fast-powered winds
... gamma-ray energy spectrum for electromagnetic counterparts to the black-hole merger. Indeed, just 0.4s after GW 150914 was detected... a mechanism for the extraction of energy from a rotating black hole and is one of the best explanations for the way...
