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A total solar eclipse is perhaps nature's most awe-inspiring event—and the Exploratorium has been webcasting live eclipse coverage worldwide since 1998. Visit our eclipse website for coverage of the total solar eclipse on July 2, 2019 as well as past expidition video, scientific explanations, eclipse legends, and more.
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Follow the mission of the Rosetta spacecraft as it traveled to Comet 67P/Churyumov-Gerasimenko and sent back the most detailed data ever collected about a comet.
Transits of Venus—the movement of Venus across the face of the sun—occur in pairs that are eight years apart and then don’t happen again for more than a hundred years.
