This July 2, the Exploratorium continues its 20-year tradition of bringing live images of eclipses to you—we’re traveling to the National Science Foundation's Cerro Tololo Observatory in Chile to broadcast a total solar eclipse visible overhead from parts of South America. Experience the wonder wherever you are: enjoy our live broadcast, available in both English and Spanish on our free iOS and Android apps and this website, or come to the museum in San Francisco to enjoy the big-screen broadcasts in person, in addition to a data-driven sonification of live telescope images by composer Wayne Grim and other eclipse programming.
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Telescope and live coverage feeds will also be available via U.S. domestic satellite. Details available soon.
To view the 2019 total solar eclipse, you’ll have to be somewhere within the light brown stripe stretching across the countries of Chile and Argentina on this map. This “path of totality,” where the darkest part of the moon’s shadow hits the Earth, is only 70 miles wide. Viewers outside that band will see a partial eclipse.
Join Exploratorium astronomer Isabel Hawkins and Exploratorium educator Liliana Blanco as they explain the celestial mechanics of a total solar eclipse. Through demonstrations, they show how the moon, sun, and Earth align to create the cosmic coincidence that we see as a total solar eclipse. En Español
Únete a la astrónoma del Exploratorium Isabel Hawkins quien junto a la educadora del Exploratorium Liliana Blanco explican los movimientos de los astros durante un eclipse total de sol. A través de demostraciones, ellas muestran cómo la luna, el sol y la Tierra se alinean para crear la coincidencia cósmica que llamamos un eclipse total de sol.
Total solar eclipses happen when the moon crosses between the sun and Earth, but Earth doesn't experience a total solar eclipse every month. Exploratorium Senior Scientist Paul Doherty explains why not.
With the help of the world-famous Kronos Quartet, Exploratorium composer Wayne Grim will turn the total solar eclipse on August 21 into a musical performance like no other. Find out how they'll pull it off.
On August 21, 2017, a total solar eclipse will cross the continental United States, from Oregon to South Carolina. Here are a few things you can start doing now to maximize your Eclipse 2017 experience. (En español.)
As the moon passes in front of the Sun, the eclipse goes through stages that provide an evolving spectacle, two plus hours of steadily changing views. Click on the images to see what you can see. (En español.)
SPONSOR: This live stream was made possible through generous grants from NASA. This material is based upon work supported by the National Aeronautics and Space Administration under Grant No. NNX16AB96A issued through the Science Education Mission Directorate. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Aeronautics and Space Administration.
PARTNERS & COLLABORATORS: We are proud to work with the following organizations to bring you this live stream: NASA and the Parker Solar Probe mission, Meade Instruments/Coronado, and Magnetic Image Video. In addition, we are grateful for the support of the NSF facility at Cerro Tololo Inter-American Observatory.