White House officials have already shot down a proposal for a Death Star, but who needs 'em? A new Kickstarter campaign is bringing the Death Star to the people, and in four days they've raised more than £200,000 (about $300,000) out of the £20 million they're looking for. Choose your amount wisely: Biggest donors get first dibs on choice of planet to annihilate.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.