The Exploratorium is temporarily closed. Explore our online resources for learning at home.
Examine the baby plants inside the seeds we eat.
Create a sound system for music only you can hear.
If you want to stay hidden, you'd better stay still.
Explore the body’s first line of defense against pathogens.
Explore the size and scale of microscopic biology.
Are HeLa cells merely cells, or part of Henrietta Lacks's self?
You become who you are through a complicated interplay of DNA and other factors, such as the conditions in your mother’s womb, what you eat, what you do, how you were raised, and much, much more.
Identical twins reveal how our surroundings affect who we are.
Jigsaw puzzles of identical twins, swapping every other piece.
Twenty different sculptural portraits created from the same person's DNA.
How much does DNA affect your appearance?
Watch a 3-D animation of a model cell crawling.
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