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 Smallest Constellations Sep 19, 2019

Week of Sept. 22-28, 2019 Not all constellations are created equally. Few things illustrate this better than facing east and then casting your gaze straight overhead this week after dark. There you'll spot the grand asterism known as the Summer Tria... Read More

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The Queen and the Lizard Sep 12, 2019

Week of Sept. 15-21, 2019 When leading my popular Borrego Night Sky Tours, I frequently encounter stargazers who are frustrated that they cannot easily see the constellations. So many have been led to believe that ancient sky watchers somehow saw lav... Read More

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As the World Turns Sep 05, 2019

Week of Sept. 8-14, 2019 We've all had those days where nothing seems to move. No matter where you go — highways, lines at the grocery store or the ATM machine — everything is at a standstill. This happens much too frequently for my tast... Read More

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Sneak a Peek at the Winter Sky! Aug 29, 2019

Week of Sept. 1-7, 2019 I don't know about you folks, but I've had about enough of this blistering summer heat, and I'm thrilled to know that cooler temperatures aren't far off. Before you know it, many of us will be whining about the cold and the sn... Read More