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

What do you really know about what you see?

Learn how Hubble Telescope scientists put together those lovely pictures.

An evening of wine, food, and talk.

Your guide to the Northern and Southern Lights (also in 'Observatory')

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

Download desktop wallpaper for your computer.

Follow along with expedition leader Bob Ballard and his crew on the exploration vessel Nautilus as they search for hydrothermal vents, underwater volcanoes, and ancient shipwrecks.

Take a virtual journey to the frog capital of the world, Rayne, Louisiana.

Share some secret sounds with a friend.

Download desktop wallpaper for your computer.

Learn about common techniques for peering inside the body in order to diagnose disease and injury.

Get down and dirty with the surprising science of soil.

Identify misalignments in your body by looking at your feet.

The more astronomy changes, the more it stays the same. This series of images juxtaposes ancient and modern study of the celestial bodies.

The more astronomy changes, the more it stays the same. This series of images juxtaposes ancient and modern study of the celestial bodies.

What goes on under the ground during an earthquake? Use a Slinky to model the various seismic waves that make the earth tremble.

Your guide to the Northern and Southern Lights (also in 'Observatory')

The lure of Terra Australis Incognita begins with the Ancient Greeks and ends with modern cruise ships.

They're a menace to ships, but life thrives in these frozen oases.

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.

In an earthquake, some older structures collapse and others stand tall. The difference is usually retrofitting.

Use the numbers on four cards to make up equations that equal the number on a fifth card.

Why do wintergreen LifeSavers spark in the dark?

What happens when two hockey players collide? Try our hockey collision calculator!

Not all bubbles are made with soap!

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

Listen to the story of Ladle Rat Rotten Hut.

This is an easy grafting project for beginners.

White-coated Arctic icons, these supreme hunters are under threat

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

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

A comprehensive tour through the weird and wonderful world of frogs.

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

An incubator for innovative public space ideas, projects and news

Explore the science behind food and cooking with recipes, activities, and archived Webcasts.

On Saturday, May 6th, 2000 we hosted a live panel discussion and webcast to explore the amazing phenomena of Star Trek.

Professional development resources for teacher educators.

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

In the 1870s, an American woman could not vote. She could not own property in her own name after marriage. But she could play ball. . .

Rube Goldberg-inspired cause and effect contraptions using everyday materials and found objects.

There are about 500 dispatches from scientists working in the Arctic and Antarctica, along with original videos, photos, webcasts, and articles.