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

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 ...

How a gathering at San Francisco’s Exploratorium became a national holiday ...

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 ...

Completely fill two bottles with hot water. Keep filling until a meniscus (an upward bulge) forms on the surface of the water. Completely fill two bottles with cold water. Keep filling until a ...

Light Painting is a great way to create striking images and illusions using a camera, a light source, and a little practice. When the camera shutter is open (and the room is dark) the film or digital ...

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 ...

Happy National DNA Day, which commemorates the successful completion of the Human Genome Project in 2003 and the discovery of DNA's double helix in 1953. Published sixty-four years ago in the journal ...

Join us for Storytime Science—a storybook read aloud followed by a simple related science activity geared toward very young children. This month, Exploratorium staffer and children's literature ...

We've been laser engraving on wood and plastics and they have been great when we make signs/signage in the Tinkering Studio. Lately I've been experimenting with filling some paint in engraving so that ...

Bring a drawing to life in just two pages! Animated videos are usually created by showing thousands of images very rapidly — which means they take a LONG time to make. But you can make a scene or ...

Screaming headlines abound in our media-saturated world. “Killer Moths Invade Homes.” “New Drug Promises Alzheimer’s Cure.” “Experts Confirm: Sky Is Falling.” Some are obvious click bait, but others ...