So many intrepid stratonauts send stuff into the upper atmosphere these days, it’s almost hard to keep track — there’s even a suborbital balloon factory now. But this weather balloon experiment still caught my eye. It’s a little space shuttle, winging its way into orbit one more time...in Lego form.
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.