General relativity caught in action around black hole
Wobbling disk of orbiting debris shows yanking and twisting of spacetime
![black hole H1743-322](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/12/121715_ag_black-hole_free.jpg?fit=860%2C460&ssl=1)
RELATIVITY TEST BED The black hole H1743-322 is corralling material from a star to form a disk, similar to the setup in this illustration. Researchers studied X-rays from the disk to detect an effect called frame dragging.
L. Calçada/ESO