The zeroHouse, a concept home designed by the New York architecture firm Specht Harpman, would run on solar power and rain water, use gravity-fed plumbing instead of traditional energy-demanding pumps, and recycle its waste.

SF site Technovelgy.com likens it to the advanced abodes described in the Arthur C. Clarke novel Childhood's End, which could be anywhere on land, or even in the sea. The zeroHouse isn't quite there yet, but it certainly would make its occupants feel like the characters in an SF novel. Even the winged solar panel design is reminiscient of the International Space Station. Unfortunately, though, the couches don't look very comfortable.—Gregory Mone

Yes, Arthur C. Clarke is still alive, and, at 89 years old, he's just as sharp as ever, if this interview in IEEE Spectrum is any indication. Popular Science sat down with the legendary science fiction writer and futurist at his Sri Lankan home in 2004, but that was before the private spaceflight industry transformed from a dream into reality.

Clarke is a big fan of Bigelow Aerospace, and he believes his concept of a space elevator will be realized in the coming decades. He also hopes to be a customer when the space tourism business really gets running.—Gregory Mone

A few months ago I got a voicemail from my seven-year-old nephew informing me that he needed help building a satellite communication device. He had most of the necessary parts, he assured me, including aluminum foil, some wires and cables, and AA batteries. All we needed to get started was a radio or remote control.

Nothing came of our project, but the imaginative reach of his idea made me wonder: Where did this itch for invention come from? Was my sister sprinkling something in his cereal? Reading him Arthur C. Clarke at bedtime?