Sun Moon Earth

About the Author

Tyler Nordgren is an astronomer and Associate Professor of Physics at the University of Redlands. He earned a PhD in astronomy from Cornell University and has worked as an astronomer at both the U.S. Naval Observatory and Lowell Observatory.

In 2004, NASA’s Spirit and Opportunity rovers landed on Mars carrying sundials, or “Marsdials,” which he helped design as part of a team of seven other scientists and artists. Since 2007, Nordgren has worked closely with the U.S. National Park Service, traveling the country giving public talks, promoting his books, and helping train rangers to provide astronomy outreach in the parks. He lives in Claremont, California.

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