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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The Winter Solstice Dec 12, 2019

Week of Dec. 15-21, 2019 One of my favorite days of the year is right around the corner. Christmas? New Year's Eve? Valentine's Day? Nope. I'm talking about the first day of winter. Now, lest you think this ol' desert rat enjoys the cold, crisp air... Read More

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Viewing the Moonlit Geminid Meteors Dec 05, 2019

Week of Dec. 8-14, 2019 It's December, and with it comes colder temperatures throughout much of the Northern Hemisphere and, in the sky, the most prolific meteor shower of the year: the Geminids. Never heard of it? Well, that's not a huge surprise. ... Read More

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What's Your Sign? Nov 28, 2019

Week of Dec.1-7, 2019 Anyone frequenting singles bars back in the 1970s or '80s has surely heard the question: What's your sign? And while most of us can recite the answer quickly, the truth is that few people know what it actually means. It's reall... Read More

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Planetary Dance at Dusk Nov 21, 2019

Week of Nov. 24-30, 2019 You may have noticed two bright "stars" shining in the southwestern sky at dusk and appearing much closer to one another from night to night. Well, these aren't "stars" at all; they're planets — the two brightest in al... Read More