Despite the fevered reports rocketing around the Internet recently, NASA is not on the verge of developing a fuel-free, faster-than-light propulsion system, space agency officials stress.

A team based at NASA's Johnson Space Center (JSC) in Houston reportedly tested a prototype engine system in a vacuum recently and determined that it produced a small amount of thrust. This news was disclosed on a NASASpaceflight.com forum earlier this year, and last week, it hit the broader Internet with a vengeance, as some pieces linked the technology to a long-sought "warp drive."

Why all the attention? The novel thruster system is based on the EmDrive, a British invention said to create thrust without propellant by bouncing microwaves around inside a chamber. If it works, the engine could revolutionize spaceflight — and it would apparently violate the laws of physics, as well. [Superfast Spacecraft Propulsion Concepts (Images)]

To read more and view the video, click here.