The folks at the national Ignition Facility decided to demonstrate fusion by focusing the energy of 192 super powerful lasers onto a tiny target. They certainly proved their concept by producing a one megajoule laser shot. Yeah, that's pretty powerful.

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This demonstration is being proclaimed as a "key step towards nuclear fusion" by the National Nuclear Security Administration. After all, this is apparently the first time such a level of laser energy was reached. More experiments will occur in the summer of this year, but you can start with the pewpew jokes now. [Physorg]

Laser beam pictured is not the 1 megajoule beam, instead it's a picture by Daily Galaxy