Fourth of July weekend is your last chance to experience the Exploratorium’s exhibits at Fort Mason.

Strips of plastic on a globe model our atmosphere.

Is pure water colorless?

Swirling sand evokes a desert landscape.

The Studio for Public Spaces team is leading the way at the Market Street Prortyping Fesitval.

Antartica is home to the world's largest and newest marine reserve.

Find order in well-mixed chaos.

Does the sand all pile up in the same way?

Sediment cores offer clues to the many histories of the Bay.

Compare how gravel, sand, and fine silt settle out of swirling waters.

Get your hands into magnetic sand.

Discover why the sky is blue and the sunset is red.