In case you haven’t heard, photons are pretty quick; around 300,000 kilometers per second quick. Fast enough that a single photon could circumnavigate the Earth more than 7 times in one second. While photographing a single photon travelling through space would be impossible, using a series of 5,000 individual sensors firing with picosecond (1 trillionth of a second) separation the Camera Culture group at MIT has recently developed a novel technique for photographing pulses of light traveling through space; each frame recording instances in time between which the individual pulses travel a fraction of a millimeter per step.

[yohttp://www.youtube.com/watch?v=-fSqFWcb4rEutube ]

By repeating the experiment several times over, each sensor can gradually build up a full picture of how the pulse interacts with its environment as it propogates across the scene.