Deep Time in Earth and Sky
Just as Grand Canyon rocks have a wide range of ages stretching back almost 2 billion years, stars in the night sky have ages from a few million to many billions of years. Learn the ages of prominently visible stars that are as old as particular Grand Canyon rock formations and discover how scientists estimate ages for both rocks and stars. A guided night sky talk will point out bright stars and discuss their properties together with the conditions in which Grand Canyon rocks of the same age were formed.
- October 23, 2024
- 7:00PM–8:00PM MST
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South Rim Visitor Center Theater
Dr. David Koerner
Dr. David Koerner is an Emeritus Associate Professor in Astronomy and Planetary Science at NAU and an accomplished musician. He has conducted groundbreaking studies of planet-forming disks at NASA/JPL, co-authored a book on astrobiology, and developed innovative field courses combining astronomy and Earth history. He is a violinist and violist who performs with the Dark Sky Quartet and is also a featured pianist at the Grand Canyon Music Festival. Dr. Koerner will be Grand Canyon Conservancy Astronomer in Residence through November 4th, 2024.