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 Great Summer Triangle Jul 18, 2019

Week of July 21-27, 2019 Now that we in the Northern Hemisphere are firmly rooted in summertime, we can see high in the eastern sky after dark one of the most famous star groupings of the season. Stargazers know it as the "Summer Triangle" because ..... Read More

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Man on the Moon Jul 11, 2019

Week of July 14-20, 2019 It occurred 50 years ago this week. Nearly everyone alive at the time remembers where they were and what they were doing. On the evening of Sunday, July 20, 1969, more than a billion people huddled around their televisions t... Read More

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Saturn: Lord of the Rings Jul 04, 2019

Week of July 7-13, 2019 It is often said that beauty lies in the eye of the beholder, so if I were to ask which is the most beautiful of all the planets, I would expect a variety of answers. Some might say it's the delicate white crescent of Venus; o... Read More