

The mystery of Racetrack Playa
Cracking the cold case
Global glides and dry lakes
YOUR GOAL
Master of Sailing stones of Death Valley
hank Sailing Stones Death Valley
On Racetrack Playa, stones slowly glide, yeah, moved by ice and wind.

hank Dry lakebeds, or playas, exist on nearly every continent, hosting unique geological and ecological wonders.

hank In warmer climates, slimy communities of microbes replace ice to help rocks slide across dry lakebeds.
Extraterrestrial dry lakes: Scientists study Earth's dry playas to understand similar flat basins on Mars and Saturn's moon Titan, which may have once held liquid.
A dry, flat area of land in a desert basin where water evaporates. California's Racetrack Playa is the famous dry lake bed where heavy boulders mysteriously slide across the mud.
Which of these is a famous dry lakebed in South Africa similar to the American playas?
Why do footprints on a wet playa cause long-term damage to the sailing stone environment?
Instead of ice sheets, what organic material helps rocks slide in some warmer Spanish lagoons?
What is the primary mineral that makes up the white, salty crust of many global playas?
What is the main geological difference between Racetrack Playa and Spain's Altillo Chica lagoon?
In which European country did scientists discover a similar moving stone phenomenon in a seasonal lagoon?