Researchers officially announced yesterday that they’ve had a breakthrough in producing nuclear fusion with a giant laser. The success comes after years of struggling to get the laser to work and is another step in the decades-long quest for fusion energy. Continue reading for a video and more information.

Dvice reports, “Labs have even gotten very short bursts of laser-powered fusion reactions to work before, but they’ve always produced less energy than they needed to get going. All that changed when Dr. Hurricane and his colleagues ran their most recent test of the laser housed within the National Ignition Facility (NIF). 500 trillion watts of focused laser power impacted an aperture no larger than a number 2 pencil, and for the first time in human history, the resulting fusion reaction produced more energy than it ate up.”