A colorized view of Saturn in ultraviolet light [270-470 nm]. Credit: NASA and E. Karkoschka [University of Arizona].
Why does a returning boomerang come back?
When most of us think of boomerangs, we imagine somebody throwing a curved stick that eventually turns around and comes right back to the thrower's hand. This device is simply amazing, and a wonderful application of some laws of physics relating to aerodynamic lift and angular momentum.