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

Make a crowd-pleasing noisemaker called a sound sandwich, which you can adjust to raise or lower its pitch.

Study ultraviolet radiation from the sun and other sources using UV beads.

Make yourself giant or tiny with a snip of the scissors.

Nobel Laureate Symposium

Map sunspots and build an apparatus for safe sunspot viewing!

Use your naked egg to experiment with osmosis, the movement of water across a membrane.

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

A brief introduction to the land of the midnight sun.

Play a memory concentration game: Listen closely then match pairs of sounds.

In September 2004, the Exploratorium covered a conference in the Galapagos Islands, organized by the National Center for Atmospheric Research, that considered the implications of El Niño forecasting.

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

Learn how some vibrant seniors exercise their minds, and find out what you can do to help your own memory.

What's really going on when you bake? Find out.

What does it take to block gamma radiation?

Explore an interactive map.

Not all bubbles are made with soap!

Find out how different kinds of candy are made in the Candy-o-matic!

Most paper airplanes are flat, but these paper hoops can really fly!

Listen to bird songs and try to figure out which are songs, which are companion calls, and which are alarms.

Learn about the search for life elsewhere in the universe.

Does the sun rise in the east? Not exactly.

Explore the surprising side of color.

Explore the surprising side of color.

Far north in the night sky, a faint glow appears on the horizon. Green and red flames of light stretch across the sky.

Use dominoes to model a nerve cell's transmission of a signal

A drop of water makes a fine magnifying lens.

Scientific knowledge and a few chemical concoctions can get you through a Bad Hair Day.

Wind tubes are a playful and inventive way to explore the effect that moving air has on objects.

It's easy to fold a sheet of paper in half. But can you fold a sheet of paper in half ten times?

Sperimenta interattivamente l'illusione del muro del caffé.

Sometimes we can learn about outer space when space objects come to us.

What is a gear ratio? And how do gears help make the bicycle so efficient?

Learn how sparkling wine is made, what makes it different from still wine, and where all those little bubbles come from!

Activities and History

Get a behind-the-scenes look at activities and ideas we’re exploring.

Find out why biodiversity benefits plants and people alike.

What's at fault?

Explore the surrounding sounds that everyday objects make. Build a noise contraption from these objects, then add a PicoCricket to automate your contraption. Finally, add a light sensor and program your sound automata to "play" when triggered by light.

An incubator for innovative public space ideas, projects and news

"Mac Town," the first stop for many scientists in Antarctica, is the same as any town–only different.

Learn how to bridge the digital generation gap

Imaginative Designs in Digital and Analog Clothing

Geometry Playground will change the way you think about geometry. This exhibition engages your hands, brain, and body in playful investigations of this most visible branch of math.

Darkening polar skies often bring beautiful light displays.

Learn how living things get energy from dead ones in this interactive exhibit.

Do hot water and cold water mix?