A laser beam 1,000 times more powerful than the U.S.

[robert l. bentham]

The 500-terawatt shot on July 5 brings scientists closer to solving a longstanding physics challenge and arguably the field's holy grail: getting back more energy than you give.​

http://www.cnn.com/2012/07/19/tech/innovation/laser-beam-powerful-techland/index.html?iref=obnetwork