The known universe appears to be the consequence of a unique event.
A timeline of the study of the brain [Interactive]
The Scale of the Universe 2
2011 The science year in brief: an interactive guide.
The Scale of the Universe [interactive]
A tour of the cell [interactive]
The Clickable Spacesuit [interactive]
Before and After Images Show Tornado Destruction
The Deadliest Years [Interactive]
Hypercube Projection [interactive] (via smoot & calcoolus)