Jillian Scharr

A real-life exoskeleton creator talks 'Elysium' and how the suit worn by Matt Damon's character is inspired by a real technology.

Bigger isn't always better. Two roboticists weigh in on just what it would take to make a giant robot—and why humanity should probably look elsewhere for defense against alien invaders.

How a mirror could create a wormhole, and why FTL starships will need supercomputers.

The crew module on the Orion spacecraft is designed for multiple flights.

There's just one thing keeping space elevators from existence.

By 2015 there'll be something green in space, and it won't be aliens!

NASA scientists are working on an actual field test of the theoretical principle behind warp drives.