Cut-paper collage postcard created for the Kollage Kit theme: "The Fifth Dimension."

The upper background is from a Time magazine photo of an electrical storm over the Grand Canyon. The man in the dog mask is from the Archie McPhee catalog. The lower background is from a painting by Gordon Onslow Ford. The creature is a late Jurassic marine reptile called a Dakosaurus.

The colorful strip in between is from a computer model of superstrings. Superstring theory holds that our universe has many more dimensions than meet the eye—dimensions tightly curled into the folded fabric of the cosmos.