Classical physics is good at describing the motion of big things (such as planets), while quantum physics is needed to describe the behavior of small things, such as atoms. But if you get a big enough atom, its electrons should orbit around just like a planet orbiting the sun, and physicists have managed to make that happen.

Though searching for a fountain of youth might sound like something out of a King Arthur story, it's also something happening right now, across the world, as scientists race toward discovering immortality. It might make marriage proposals seem a bit heavier, but some folks out there are dedicated to figuring out how to live forever (which sounds expensive).

How high-speed can a high-speed camera get? Try fast enough to watch a pulse of light itself move through a soda bottle.

From yarn to batteries to space elevators, it seems like there's nothing that carbon nanotubes can't do. And for their latest trick, they can make things completely disappear.