I Used a 1,580,000,000 Gigawatt Laser on the Earth - Universe Sandbox 2 - YouTube
Press release: LAMpAS announces that the target parameters of its kilowatt-class ultrafast laser have been reached - LAMpAS
Starshot Laser to Explore Space Would Be Strong Enough to Burn Cities
Propulsion lasers for large scale deployment of solar power space satellites and reducing the startup costs and the costs to launch | NextBigFuture.com
Starshot Laser to Explore Space Would Be Strong Enough to Burn Cities