Light completely stopped for a record-breaking minute

Light completely stopped for a record-breaking minute - physics-math - 25 July 2013 - New Scientist: "While light normally travels at just under 300 million metres per second in a vacuum, physicists managed to slow it down to just 17 metres per second in 1999 and then halt it completely two years later, though only for a fraction of a second. Earlier this year, researchers kept it still for 16 seconds using cold atoms."