This camera snaps 3-D images from up to a kilometer away

A standard camera takes flat, 2-D pictures. To generate 3-D information, such as the distance to a far-away object, scientists can bounce a laser beam off the object and measure how long it takes the light to travel back to a detector.

Avatar director helps next Rover mission to film Mars in 3D

Avatar director James Cameron has persuaded NASA to let him help design a high-resolution 3D camera for the next Mars Rover.