Learn with us online while the Exploratorium is temporarily closed. You can help us reopen—donate today.
What we see can depend on what we expect to see.
Confusing sensory information can be profoundly disturbing.
A reflector stretches light from colored tiles into long bright ribbons.
Looking at the night sky can help you see how your eyes and brain make sense out of moonlight.
Freezing water forms a spiky kaleidoscope of colorful crystals.
Without depth perception, random lines can become a chair!
With just mud, paper and an egg, you can grow colonies of multi-hued microbes!
Reflect on the ins and outs of mirrors.
Can you believe your eyes?
Shine some light on brine shrimp behavior.
Our new Shadow Box is made of large phosphor screens which store light from a strobe flash, temporarily freezing the visitor's shadow.
Overlapping pools of red, blue, and green create a Venn diagram of additive color.
(Embarcadero at Green Street)
San Francisco, CA 94111
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