Colliding Branes and the Cyclic Universe (version 1)
Animation showing the regularly repeating collisions 
of our three-dimensional world (referred to as a 
"brane"  or "braneworld" in string theory) with
another braneworld along an extra dimension and the 
various stages in the evolution of the cyclic universe.   

Colliding Branes and the Cyclic Universe (version 2)
Similar to version 1 but colorfully emphasizing how 
the wrinkles caused by quantum fluctuations create 
temperature variations after the bang like those 
observed by cosmologists in the cosmic background 
radiation.

Animated Cover Image
Take a tour around the cover image for Endless Universe.