Dr. David Koerner is an Emeritus Associate Professor in Astronomy and Planetary Science at Northern Arizona University and an accomplished musician. He was selected as Grand Canyon's 11th Astronomer in Residence. "One of the themes of my residency is exploring deep time--both in earth and in sky. Deep time is a perceptual vastness, one that can make us feel small yet also deeply connected." Spend a Minute Out In It with David, as he serenades visitors with night-sky-themed music on the rim of the Canyon.