Astronomer and Foothill College professor Andrew Fraknoi will give a free, illustrated, non-technical talk as part of the Silicon Valley Astronomy Lecture Series, now in its 17th year. On August 21, there will be a rare eclipse of the Sun visible throughout the U.S. and all of North America. Learn how eclipses work, why they are one of nature’s most spectacular sights, what scientists learn during eclipses, exactly when and where the eclipse of 2017 will be best visible, and how to observe the eclipse and the Sun safely. night.