Self-guided bullet could hit laser-marked targets from a mile away

February 3, 2012 | Source: Gizmag

(Credit: Sandia National Laboratories )

Sandia National Laboratories researchers have built a prototype of a four-inch-long, small-caliber bullet capable of steering itself towards a laser-marked target located approximately 2,000 meters (1.2 miles) away.

Aided by little fins, the on-board guidance and control electronics use the information passed on by an optical sensor located in the nose to calculate the flight path.