See what's cool this month! Browse our archives for the best science, art, and education sites.
Couldn't get to the Panama Pacific International Exposition in 1915? Go now in 3-D!
The Science Information Infrastructure (SII) is a collaboration among teachers and scientists. The SII at the Exploratorium is developing educational resources using NASA images and datasets.
An introduction to spectra and to the space-based telescopes. The site includes a number of hands-on activities.
Explore our 2000 guide to the solar max, the period in the solar cycle during which the number of sunspots is greatest.
Using a spectroscope, you may see that what appears to be a single color of light is really a combination of colors called a spectrum.
Listen to internationally recognized authorities on human thought and behavior, including Temple Grandin and Paul Ekman.
Use live data to check the weather in space, and learn how it can affect us here on earth.
Explore the places, people, tools, and ideas behind the origins of matter, the universe, and life itself.
Professional development resources for teacher educators.
See the tiny disk of Mercury slowly travel across the face of the sun in this rare event.
Pier 15 (Embarcadero at Green Street)San Francisco, CA 94111(415) 528-4444
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