Backlit Elm, Cook's Meadow, Yosemite National Park, California, USA.
Wild calla lilies and dusk sky, Garrapata State Park, California, USA.
Comet Pan-STARRS and a crescent moon as seen from summit of Haleakala National Park (elevation 10,023) where comet was first discovered, Maui, USA. This image was captured on March 12, 2013 approximately 40-minutes after sunset.
