When a satellite runs out of fuel, there are really only a couple options: Quietly become a piece of space junk, or fall back to Earth in a blaze of glory. But a new space gas station will fill ‘em up, ensuring satellites can keep on trucking and preventing the proliferation of orbiting garbage.
A final report issued by a blue-ribbon commission on NASA's future enthusiastically embraces in-space refueling and commercial spaceflight to low-Earth orbit, but curiously leaves out NASA's Ares-I rocket in future scenarios.
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.