The most energetic laser shot in mankind's history was fired at the stadium-sized National Ignition Facility in California this month.
On July 5, an array of 192 lasers filed a pulse of ultraviolet laser light that deliver generated 500 trillion watts of peak power - 1,000 times more than the whole of the U.S. uses at any given time.
The pulse is a historic moment for the 'fusion' facility, which aims to generate power using a nuclear fusion reaction - similar to what happens in hydrogen bombs.
NIF Director Edward Moses said. 'It is fully operational, and scientists are taking important steps toward the quest for clean fusion energy.'