About Dennis Mammana

Dennis Mammana

Dennis Mammana

For more than three decades, Dennis Mammana has shared the wonder and mystery of the cosmos with audiences around the world. With a B.A. in physics from Otterbein College and an M.S. in astronomy from Vanderbilt University, Mammana has held positions at the Smithsonian's National Air & Space Museum, the University of Arizona, and San Diego's Reuben H. Fleet Science Center. He now works as an astronomy writer, lecturer and photographer from under the clear dark skies of Southern California's Anza-Borrego Desert. Mammana is the author of six books on astronomy, hundreds of popular magazine and encyclopedia articles and, since 1992, has written "Stargazers," the only nationally syndicated weekly newspaper column on astronomy.

As an accomplished night-sky photographer, his stunning images have appeared in a variety of media and international exhibitions, and can be enjoyed at his website, www.dennismammana.com. He is an invited member of TWAN — The World At Night — an international team of the world's most highly acclaimed sky photographers.

A dynamic public speaker, Mammana has entertained and informed audiences on six continents at resorts, on cruise ships and as an after-dinner speaker, and leads public tours to view and photograph such celestial displays as the aurora borealis and total solar eclipses. He makes frequent appearances on both radio and television.

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Earth's Elliptical Orbit Jun 22, 2017

Week of June 25-July 1, 2017 Summer is only a couple days old, and already we're baking. As I write these words, the temperature outside of my desert home is hovering at 118 degrees F, and there's no sign of it letting up anytime in the next few mo... Read More

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Get Ready: Summer is Coming! Jun 15, 2017

Week of June 18-24, 2017 Hard to believe it's mid-June once again. That, of course, means a change of seasons is about to arrive in just a few days. Do you know which day marks the beginning of summer this year? If you said June 21, you're absolute... Read More

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Saturn: Lord of the Rings Jun 08, 2017

Week of June 11-17, 2017 If I were to ask which you think is our solar system's most beautiful planet, how would you respond? Some would answer that the Red Planet, Mars, or the glistening planet Venus beat all others. Some might argue that Earth i... Read More