Astrobiologist Joshua Sebree of the University of Northern Iowa suggests that South Dakota's Wind Cave exhibits chemical similarities to Jupiter’s icy moon Europa.

Fluorescent-colored sand sprinkled on San Diego ... grains of bright material to show the movement of sand carried by ocean currents. The technique is recommended in a report recently completed ...

A task force in San Diego wants to use fluorescent sand to help understand the role ocean movement is playing in California's vanishing beaches. Beaches in the Golden State have been shrinking due ...