As Monster Black Hole Feeds, a Slow-Motion Jet Is Born

After zooming in on a star being consumed by a supermassive black hole, scientists have discovered that a jet emanating from the system is moving much more slowly than expected. "We were able to measure the jet's position to a precision of 10 microarcseconds … These are some of the sharpest measurements ever made by [a] radio telescope," lead author Jun Yang, of the Onsala Space Observatory and the Chalmers University of Technology in Sweden, said in a statement. When a supermassive black