A strangely beautiful piece of data visualisation from a Canadian 'electronic music and visual trio' called Orbital Mechanics. The red dots denote atmospheric detonations, yellow is for underground and blue is for underwater:
[vimeo:135580602]
I note in the comments for this video that readers are pointing to a very similar data visualisation which appeared in 2003. Orbital Mechanics replies that they came up with this independently.
(H/t Kottke.)