“Early on May 23, 1997, from 28,500 feet on Everest, I witnessed the incredible shadow of the mountain, the penumbra, forming to the west as the sun rose behind me. The full moon from the night before was still visible. The bluish cast of the atmosphere can also be seen.”

“Early on May 23, 1997, from 28,500 feet on Everest, I witnessed the incredible shadow of the mountain, the penumbra, forming to the west as the sun rose behind me. The full moon from the night before was still visible. The bluish cast of the atmosphere can also be seen.”

— Ed Viesturs