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Dean Regas

About Dean

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Dean Regas in front of Cincinnati Observatory

Your Astronomer

Featured in the New York Times and Washington Post

Dean has been the Astronomer for the Cincinnati Observatory since 2000. He is a renowned educator, author, national popularizer of astronomy and an expert in observational astronomy.

From 2010-2019 Dean was the co-host of the PBS program Star Gazers. He is the author of four books including "Facts From Space!" and 100 Things to See in the Night Sky, Expanded Edition. Dean is a Contributing Editor to Sky and Telescope Magazine and a contributor to Astronomy Magazine, where he won 2008 “Out-of-this-World” Award for astronomy education.  Dean has written over 160 astronomy articles for the Cincinnati Enquirer, blogged for the Huffington Post and is regularly featured on television and radio.  Dean is a frequent guest on National Public Radio’s Science Friday with Ira Flatow and NPR's Here & Now. He also hosts an astronomy podcast with Anna Hehman called "Looking Up!"

At the Cincinnati Observatory, he has developed his skills as a dynamic writer and public speaker who brings the complicated field of astronomy down to Earth for students of all ages.

Dean's newest book, "How to Teach Your Grown-Up about Pluto" comes out April 5, 2022

Book cover for "100 Things to See in the Night Sky"

Dean's Newest Book!

100 Things to See in the Night Sky, Expanded Edition

"This book points to an unexpected source of entertainment, and even solace, in the skies above ... As the world roils, the stars spin on."  - Washington Post

Learn your way around the best, most fascinating objects you can find with the naked eye and binoculars in the updated and expanded collection of planets, stars, constellations, and more.  With more detailed star charts this book is perfect for beginners and amateur astronomers wanting to explore the night sky.  

Available on Amazon   And Barnes and Noble

"Facts From Space" Book cover

Facts From Space!

From Super-Secret Spacecraft to Volcanoes in Outer Space, Extraterrestrial Facts to Blow Your Mind!

Dean's first book will take you from the Earth to the edge of the universe and back.

How did turtles, flies, meal worms, and bacteria become the first living things to go the far side of the Moon?  How do you go to the bathroom in zero-gravity?  Where should we look for aliens? You will see a Martian sunset, swirl in Jupiter’s Great Red Spot, skim the corona of the Sun, and fall into a black hole.  

Get the Facts From Space! on Amazon or Barnes and Noble

Upcoming and Recent Appearances

Book sale and signing at the Cincinnati Observatory - Dec 16, 5:30-7pm.

Grand Canyon Astronomer in Residence - Nov. 16 More Info

Virtual STEM Conference for Teachers, Keynote Speaker - Nov. 9 More Info

Blue Licks Battlefield State Park, Carlisle, KY - Oct. 22, 7pm More Info

Science Friday - Oct. 14, 2021 Interview with Dean about What's Up in the Sky

Wall Street Journal review of Dean's Book 100 Things to See in the Night Sky, Expanded Edition

Here & Now Interview- December 7, 2020  A Match Made in Heaven

The Tundra - Virtual Event "Beyond Space" Watch it Here

Here & Now radio program - June 29, 2020 - Listen Here and Now

Washington Post - 100 Things Book - June 20, 2020 - Read the Review

Dean in Cincinnati Magazine - May 15, 2020 - Check out the article

Joshua Tree Night Sky Festival - Keynote speaker - Sept 21, 2019 Joshua Tree National Park

Serpent Mound - Keynote Speaker - September 7, 2019  Talk and Star Party

Shenandoah National Park - Guest Speaker - September 5, 2019

Grand Canyon Star Party - Keynote speaker - June 27, 2019 Grand Canyon National Park

Science Friday - Dean Regas Explains the Lunar Eclipse  Listen Here

Here & Now Interview - Super Blood Wolf Moon - January 20, 2019  Here & Now Eclipse

Here & Now Interview - 2018 a Busy Year in Space - Dec 28, 2018  2018 in Review

Books by the Banks - Cincinnati Regional Book Festival - October 20, 2018

Science Friday live from WVXU Cincinnati - April 20, 2018 Science Friday Interview

Hawaii Volcanoes National Park, Hawaii - Star Party - January 29, 2018

Huffington Post - September 11, 2017  Cassini Mission to Saturn Article

New York Times - When the Universe Calls - September 8, 2017 New York Times

Bryce Canyon Star Party - Keynote Speaker - June 23, 2017  Bryce Canyon

NEAF, Northeast Astronomy Forum - Speaker - April 8, 2017  NEAF

USA Today - December 28, 2016  Highlights of 2017

Science Friday with Ira Flatow - December 23, 2016  Science Friday

Science Friday with Ira Flatow - May 6, 2016  Transit of Mercury

Huffington Post - September 24, 2015 Supermoon Lunar Eclipse

Science Friday - September 18, 2015  Keeping an Eye on our Celestial Companion

Science Friday - June 5, 2015  How I Explained the Sun

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