Scientists have developed a new camera which takes pictures at a rate never before achieved. It takes 6.1 million pictures a second. That computes to a shutter speed of 440 trillionths of a second. This rate of capture means the second shot is taken before light has even had a chance to move a full centimeter. That is incredibly fast.
Head over to http://www.wired.com/wiredscience/2009/04/fastestcamera for an explanation of how it works and a demonstration.