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.

...

Follow the Celestial River Feb 21, 2019

Week of Feb. 24-March 2, 2019 Gaze skyward on cold winter evenings and you'll find it hard to ignore Orion the hunter, standing stoically in the south. Even those of us who just accidentally glance upward as we race from our cars to our nice warm hom... Read More

...

Get Ready for Yet Another 'Supermoon' Feb 14, 2019

Week of Feb. 17-23, 2019 If the full moon appears especially large when it rises over the horizon around sunset on Monday and Tuesday, Feb. 18 and 19, that's because ... well ... it is. Regular readers of this column know about the optical illusion ... Read More

...

Measure Heights With Shadows Feb 07, 2019

Week of Feb. 10-16, 2019 Though much of the Northern Hemisphere remains quite cold and snowy, spring is definitely on its way. In fact, you've probably noticed that the sun climbs higher in our midday sky and our daytime hours are already becoming si... Read More