Sci-Fi Science: Physics of the Impossible Season 1 Episode 3
The crosshairs are lined up, a death ray is fired and a planet is vaporized. Sci fi fantasy? Not according to Dr Michio Kaku, who draws up blueprints to show how a real death star might work. The technology could be here sooner than you think!
Episode Title: How to Blow Up a Planet
Air Date: 2009-12-08