The energy released in an earthquake ranges over many orders of magnitude. Earthquakes are measured on a magnitude scale that is exponential: Each additional unit multiplies the energy released by 32.

This Snack models ground failure in a phenomenon called liquefaction. See what happens when you shake up structures, loose sediments, and water in a simulated earthquake. Pour sand and water together ...

Visitors Can Take a Free Ride on the Sea Change, the First Zero-Emissions Hydrogen Ferry in the U.S., and Explore Its Technology Up Close SAN FRANCISCO (October 15, 2025) – The Exploratorium is ...

Eclipses can be mystifying experiences. Traditions from around the world imagine the eclipse as everything from the Sun being eaten by monsters to an intimate meeting with the moon. Here, we explore ...

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 to Make a Pinhole Projector There are safe ways to view the sun. The simplest requires only a long box (at least six feet long), a piece of aluminum foil, a pin, and a sheet of white paper. The ...