Casa Grande: A Mysterious Astronomical Structure in the Desert

Casa Grande: A Mysterious Astronomical Structure in the Desert

Although I have visited numerous historical places around the world, I felt something different when I visited Casa Grande Ruins in Coolidge, Arizona. I have lived in the Sonoran Desert for over two decades now, and I know the extreme heat of summer, the wildness of a...
Hoover Dam’s Astronomical Site

Hoover Dam’s Astronomical Site

I recently visited Hoover Dam at the border of Nevada and Arizona and discovered an astronomical site!  It is a beautiful example of modern-day archaeoastronomy. I visited Hoover Dam about fourteen years ago but never noticed this remarkable work of human imagination...
Night Sky Tourist Podcast Marsha Diane Arnold: Episode 2

Night Sky Tourist Podcast Marsha Diane Arnold: Episode 2

In episode 2 of Night Sky Tourist podcast, Marsha Diane Arnold joins us. She is an award-winning children’s book author of more than 20 books. Her most recent book, Lights Out!, introduces the concept of light pollution to young readers in a gentle and beautiful way...