Happy holidays from the International Space Station! Film student Giacomo Sardelli created this timelapse video of the ISS to promote world connectedness and peace on Earth. 'Tis the season. Although this background music is way more epic than "Frosty The Snowman."
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.