Visit the European Organization for Nuclear Research, known as CERN, which studies what the universe is made of and how the universe works.
Map sunspots and build an apparatus for safe sunspot viewing!
See the tiny disk of Mercury slowly travel across the face of the sun in this rare event.
Learn about the transit of Venus - what it is, what you'll see, and why it's important. View the rarest eclipse of them all - the Transit of Venus.
Explore Saturn, its rings and moons, and see the latest images.
Use live data to check the weather in space, and learn how it can affect us here on earth.
Explore our 2000 guide to the solar max, the period in the solar cycle during which the number of sunspots is greatest.
A place for sharing information and resources for museum and other educational web developers about online virtual worlds.
There are about 500 dispatches from scientists working in the Arctic and Antarctica, along with original videos, photos, webcasts, and articles.
Your guide to the Northern and Southern Lights (also in 'Observatory')
Explore stories, dispatches, photos, and articles, as well as archived webcasts of total and annular solar eclipses and transits.
Examine the art and science of listening through a series of online activities, videos, and more.
Pier 15San Francisco, CA 94111(415) 528-4444
© 2014 Exploratorium
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