Explore, Play, Discover: Websites, Activities, and More

We can't predict when an earthquake will occur, but we can avoid some potential disasters.

Listen to the story of Ladle Rat Rotten Hut.

The nearly ice-free Dry Valleys are an Antarctic anomaly, and Earth's closest equivalent to Mars.

Make your own refracting telescope from a pair of reading glasses.

How many pennies will your bridge hold?

A Scribbling Machine is a motorized contraption that moves in unusual ways and leaves a mark to trace it's path.

Explore webcasts, stories, dispatches, photos, and articles of total and annular solar eclipses and transits.

the Fudge House on Fisherman's Wharf in San Francisco!

Scientists dig under the surface for clues to past climate