Astronomy Writing    Lecturing    Photography




For more than four decades, Dennis Mammana has delivered the wonder and mystery of the cosmos to audiences around the world―through his celestial photography, popular astronomy writings, public lectures and workshops, unique night sky tours and his exciting astronomical enrichment trips to some of the most exotic locations on Earth.  Please enjoy your visit, and be sure to follow and chat with Dennis online!



For more details, please visit Borrego Night Sky Tours; this is one journey you won't soon forget!

June 20-21, 2015
Borrego Springs, CA

The summer Milky Way is glorious, no question. But have you ever taken a great photo of it?

If you'd like to learn to create stunning portraits of our home star city
and morewith only a camera and tripod, this inspiring and fun-filled  workshop is for you!
Check it out here, and register online! 


with Dennis Mammana

It's Nature's most remarkable celestial event: a total solar eclipse. In March 2016 we'll experience the Java Sea Eclipse in the South Pacific, and in August 2017 we'll enjoy the Great American Total Solar Eclipse in one of the most amazing sites in the Western U.S.  Spaces going quickly... make you reservations today! 

2015-2016 Public Programs

Join all the fun with Dennis' exciting lectures, workshops and eventsmost under the clear dark skies of Borrego Springs, California's only International Dark Sky Community.  Details coming soon!

Subscribe FREE to Dennis' popular weekly "Stargazers"

If your local newspaper does not carry this popular column—now in its 23rd consecutive year—you can receive it FREE via e-mail!  Just visit the Stargazers page at Creators Syndicate and click the box at the bottom.  Or request that your newspaper editor consider carrying it so all your friends and family may also enjoy!


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(c) Dennis L. Mammana.  All rights reserved.