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

Why is the bicycle the most efficient way to travel? Explore bicycle science and culture.

Our collaboration with Public Radio International's The World. With Public Radio International, we're taking technology news beyond the headlines.

Explore the mysterious interactions between light and geography through the eyes and works of artists Charles Ross and James Turrell.

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

From May 20 to June 5 1997, we presented a webcast series exploring the art and science of severe storm visualization.

Join us as we crunch our way through everything from our San Francisco sourdough to Injera and Pugliese.

Download desktop wallpaper for your computer.

Make a simple rocket and a rocket launcher, and watch a demonstration of how the finished rocket will fly.

Build a bridge from a piece of paper and explore ways of making it stronger.

Get a taste of how the earth's plates move.

In celebration of Albert Einstein's work in 1905, science laboratories and museum around the world (including the Exploratorium) participated in a twelve-hour webcast that explored Einstein's influence on current physics research.

With just mud, paper and an egg, you can grow colonies of multi-hued microbes!

Art/science teams explore the underlying systems that give the San Francisco Bay Area its unique character.

An introduction to the concepts and theories that contribute to contemporary complexity research.

Just how much fat is in ground beef? You may be surprised.

Imagine yourself in the middle of the vast Pacific Ocean. You've been sailing for weeks, and there's no land in sight. Do you know where you are? Do you know which way to go?

Learn about the rovers that have been exploring Mars since 2004, and view the amazing images they've taken.

Crabeaters have extraordinary teeth, Weddells are downright cute, and leopards are as fierce as their namesake

Use this handy conversion calculator to convert between the many units found in recipes.

Learn about the rovers that have been exploring Mars since 2004, and view the amazing images they've taken.

Richter and beyond

Listen to the sound of a rainstorm – anytime, anywhere.

Specialized cells have a common origin. What sets them on separate paths?

When you ride a bike in a straight line, you must make many minor corrections in order to stay upright.

Learn how Hubble Telescope scientists put together those lovely pictures.

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

Share some secret sounds with a friend.

Grow spikes of crystals in the sun.

Measure your reaction time with just a meter stick and some help from a friend.

You may be surprised at the results of this "wimpy" workout.

An artist paints his childhood home from memory.

Make an observatory to see the amazing colors in bubbles!

Decorate your white walls with rainbow colors!

Uncover the everyday origins of some extraordinary instruments.

Can you tell the difference between human and nonhuman embryos?

The common ground between pickles, cheese, bread, wine, and many other foods.

Watch ancient text revealed and read for the first time in a thousand years!

Put on a mask and see how we communicate with our bodies as well as with our faces and words.

Make a photographic image without a camera!

Watch tiny blue, green, and white molds grow on leftover food.

What kinds of candy are made and enjoyed in where you live?

The frozen worlds of the Arctic and Antarctica

Find out why wind resistance is a big drag for bicyclists, and use our calculator to estimate drag for yourself.

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

Exploring the diversity, distribution, and abundance of life in the oceans

Professional development resources for teacher educators.

How do you stop and steer a bicycle? What forces keep the bicycle from falling over?

Do hot water and cold water mix?