Studying X-ray emission with NASA’s NICER mission has shown up extremely bright galaxies, pulsars and other cosmic sources

Studying X-ray emission with NASA’s NICER mission has shown up extremely bright galaxies, pulsars and other cosmic sources
The merger sent an intense flash of radiation into the cosmos, picked up by NASA’s Chandra X-ray Observatory
As stars form and black holes throw out energy, the centre of galaxies can have a build up of energy and require these ‘chimneys’ to offer a route to escape
Astronomers devise new strategy which could lead to a triplication in the number of known stellar mass black holes