Learn with us online while the Exploratorium is temporarily closed. You can help us reopen—donate today.
Create a sound system for music only you can hear.
Did you know that gravitational waves originating from outer space actually carry enough force to stretch and compress our planet?
Is pure water colorless?
Cheer on the competitors in this zany science cook-off.
Shadows made with laser light have light and dark bands.
You see transparent objects because they bend light.
Parabolic dishes collect and focus sound waves and reflect them to participants seated within them.
See how strings behave when they vibrate and make sound.
Confusing sensory information can be profoundly disturbing.
Explore the twinkling of stars by beaming a laser pointer over a hot plate.
Listen to the sound of the sea.
Pier 15 (Embarcadero at Green Street)San Francisco, CA 94111(415) 528-4444
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