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

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 ...

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 ...

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 ...

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 ...

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

Can you smell time? Your dog can. On a very basic level, so can you: When you crack the lid on that old quart of milk, tentatively sniff and—peeyouu!—promptly dump that foul stuff down the sink, you ...

Sunday (Daytime Members/Donors Only 10:00 am to Noon): 12:00 pm—5:00 pm ...

You don’t have to be a climate scientist to teach climate change, and you don’t have to be an experienced storyteller to infuse climate content with stories. Explore these educator resources for using ...

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 ...

On February 16 the Exploratorium will be hosting "In My Solitude:The Detrimental Effects of Solitary Confinement on the Brain," a panel discussion about the legal and neurological issues surrounding ...