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Andrew Fraknoi

“Andrew Fraknoi is a semi-retired astronomer & college professor who's appeared on radio & podcasts, explaining science in everyday language.”

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About Me

Andrew Fraknoi retired a few years ago as the Chair of Astronomy at Foothill College. Now he teaches introductory astronomy at the Fromm Institute at the University of San Francisco and the Osher Lifelong Learning Institute at San Francisco State. For 14 years, he served as the Executive Director of the Astronomical Society of the Pacific, an international scientific and educational organization.

He is the lead author of the most frequently used basic astronomy textbook in North America, Astronomy, published free online by the nonprofit OpenStax project at Rice University. He has also published two children’s books, including "When the Sun Goes Dark" (on eclipses), several teaching manuals, and, recently, seven science fiction stories based on good astronomy.

He has appeared regularly on local and national radio and TV for more than three decades, explaining science developments. The International Astronomical Union has named Asteroid 4859 Asteroid Fraknoi to recognize his contributions to the public appreciation of science. See: http://fraknoi.com for more information about his work.

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Home - Andrew Fraknoi - Astronomy Lectures - Astronomy Education Resources

This is the home page of the website of astronomer and educator Andrew Fraknoi. The site includes information about his books, articles, classes, astronomy lectures, radio appearances, and work with science fiction. There is a page that collects his resource guides on astronomy and astronomy education.

Andrew Fraknoi (The AstroProf) | San Francisco CA

Andrew Fraknoi (The AstroProf), San Francisco, California. 5,900 likes · 20 talking about this. Here astronomer/educator Andrew Fraknoi shares astronomical images, news, and resources. Check "Get

I Swallowed a Martian

I didn’t mean to swallow a Martian. I didn’t even know it was there, for Pete’s sake. But there’s no question I swallowed it. I haven’t been the same since. Dr. Okito told me to record what happened, so people who come to Mars in the future will all be able to hear it straight from the horse’s mouth. My story’s not going to make anyone happy, but maybe you’ll be more likely to heed the old warning they always gave to tourists on Earth---don’t drink the water until you know what’s in it. My name is Dave Esposito, a

OpenStax | Free Textbooks Online with No Catch

OpenStax offers free college textbooks for all types of students, making education accessible & affordable for everyone. Browse our list of available subjects!

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