A robot built by a pair of engineering students at MIT can solve a Rubik's Cube in 0.38 seconds (which happens to be 19 minutes and 59.22 seconds shorter than my fastest time):
0.38 seconds is over in an almost literal flash, so the video helpfully shows this feat at 0.25x speed and 0.03x speed. I bet when they were testing this, they witness some spectacular cube explosions. (via @tedgioia)