In their latest finds, physicists with the Laser Interferometer Gravitational - Wave Observatory spotted the merger of black holes spinning in different orientations, as shown in this artist's conception. (sciencemag.org)
«This contrasts with the recent X-ray determinations of (close to) maximal black hole spin in other [similar galaxies] based on relativistic smearing of the iron profile,» the researchers wrote in the study, which was published online today (July 29) in the journal Monthly Notices of the Royal Astronomical Society. (space.com)
«Some supermassive black holes spin at more than 90 % of the speed of light, which suggests that they gained their mass through major galactic mergers.» (creationscience.com)