In February 2009, NASA launched the Orbiting Carbon Observatory, a research spacecraft that crashed into the ocean shortly after launch. The project, managed by NASA's Jet Propulsion Laboratory, was designed to map the distribution of carbon dioxide (CO2) in the Earth's atmosphere. In February 2013, NASA has announced, it will launch its Orbiting Carbon Observatory-2 (OCO-2) spacecraft.
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.