Topic: CID-42: A Black Hole Slingshot?

[sam]

Evidence for a recoiling black hole has been found using data from the Chandra X-ray Observatory, XMM-Newton, the Hubble Space Telescope (HST), and several ground-based telescopes. A new paper reports that this black hole kickback was caused either by a slingshot effect produced in a triple black hole system, or from the effects of gravitational waves produced after two supermassive black holes merged a few million years earlier.

http://chandra.harvard.edu/photo/2010/cid42/

[Clive]

triple black hole system

  The mind boggles.  An artist's impression would be interesting.