Eclipses and Transits
a talk on April 21, 2012 by Paul Doherty, Senior Scientist at the Exploratorium in San Francisco (Patio Plasma in Second Life).An overview of how eclipses and transits happen. (A transit of Venus is happening on June 5/6, 2012.) How to look at them safely. How transits were used to measure the solar system. How the Kepler satellite is searching for exoplanets (planets outside our solar system) by looking for transits.
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