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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Seeing Double in the Dipper Mar 26, 2020

Week of March 29 - April 4, 2020 It's pretty easy for us terrestrial stargazers, orbiting a single star like the sun, to believe that the stars of our nighttime sky must be similar to it. In some ways that's true. All are globes of mostly hydrogen t... Read More

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Realm of the Galaxies Mar 19, 2020

Week of March 22-28, 2020 Three or four hours after sunset this week, get away from bright city lights, and take a gander around a pristine, rural sky. Once there, I recommend that you sit back, relax and ponder what lies before you. Every light in ... Read More

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Finding Leo After Dark Mar 12, 2020

Week of March 15-21, 2020 Some of my fondest childhood memories come from school field trips to Philadelphia's Fels Planetarium. Oh, how I looked forward to those magical times under the starry dome. They exposed me to a universe I never would have ... Read More

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What Time Is It Anyway? Mar 05, 2020

Week of March 8-14, 2020 Nothing's ever easy. Take time, for example. What time is it right now? Most people find that a quick glance at their wristwatch gives a sufficient answer. For those of us in science, however, the answer often depends on sev... Read More