Greatest tech comeback No. 2: The Final Frontier
For a while it looked like we'd all be eating food out of a tube and drinking Tang on gravity-free flights to the moon. After funding for NASA's manned space program got slashed, though, we were forced to play out our dreams on the big screen. Now private space ventures, funded largely by profits from high-tech companies, are bringing the space race home. Elon Musk's other project, SpaceX, has already delivered its first two commercial payloads to the International Space Station. With Virgin Galactic scheduled to take off with six space tourists on board in early 2014, the sky is literally the limit. Take us out of orbit, Mr. Sulu.