A binary black hole system, viewed edge-on. This pair of extremely dense objects twists and warps spacetime as the two black holes spiral in toward one another. Image Credit: Bohn, Throwe, Hébert, Henriksson, Bunandar, Taylor, Scheel (see http://www.black-holes.org/lensing) via: http://www.universetoday.com/116500/new-simulation-offers-stunning-images-of-black-hole-merger/
'Space Slinky' Erupts from Giant Black Hole (Video). Meyer of the Space Telescope Science Institute in Baltimore, Md., said the jet's spiral motion may be created by a helix-shaped magnetic field surrounding the black hole.