See the invisible made visible using tools from simple hand lenses to powerful microscopes ...

SAN FRANCISCO (March 10, 2026) –The Exploratorium has appointed Laura Zander as its first Chief Growth & Operating Officer. After 18 years in C-suite leadership at the Exploratorium, including serving ...

What’s conductive around you? Explore materiality as you gather interesting, conductive objects to make delightful switches. Combine these with craft materials to customize your designs and add ...

After 10 minutes, take a look at the nails. Are they a different color than they were before? Is the leaning nail 2 different colors? If not, leave the nails in the bowl and check on them again in an ...

The Big Bang theory raises some important questions about the fundamental nature of the universe: Will the expansion of the universe, set in action by the Big Bang, continue forever? Or will gravity ...

Make three Roto-Copters for each person. Use a marker to draw a 1-foot circle on a piece of newspaper. Put a cereal bowl in the middle of the circle. The circle is the target area and the bowl is the ...

Keep adding water until the Ooze feels like a liquid when you're mixing it slowly. Then try tapping on the surface with your finger or a spoon. When Ooze is just right, it won't splash--it will feel ...

Guy Consolmagno is a religious brother in the Society of Jesus (Jesuits). He is an astronomer and Director Emeritus (2015-2025) of the Vatican Observatory, and President of the Vatican Observatory ...

The Tinkering Studio is primarily an R&D laboratory on the floor of the Exploratorium, but whenever possible we try to share our projects, activities, and developing ideas following an “open source” ...

Make a saturated salt solution by adding salt to water and stirring until it doesn't dissolve anymore. Add a splash of vinegar to this solution. Cut your matboard into four 1/2-inch squares, each ...

Build your own Unstable Table with everyday materials! In this activity, you're invited to tinker with objects on a platform to figure out how to balance them in ways that don't always look like they ...