An effect predicted to occur in general relativity theory by J. Lense and Hans Thirring in 1918 in which a compact rotating body causes the space near it to rotate in the same direction. The phenomenon is also known as frame dragging. It has been reported in observations of neutron stars and black holes. Measurements have also been made using shifts in the orbits of satellites around the earth.
http://www.nasa.gov/mission_pages/gpb/index.html The home page of NASA's Gravity Probe B experiment to investigate frame dragging
http://lhc.web.cern.ch/lhc/ The Large Hadron Collider home page at CERN