Racetrack sailing stone and star trails. A sliding rock of the Racetrack Playa. The sliding rocks, or sailing stones, move across the mud flats of the Racetrack Playa, leaving trails behind in the mud. The explanation for their movement is not known with certainty, but many believe wind pushes the rocks over wet and perhaps icy mud in winter.
Location: Racetrack Playa, Death Valley National Park, California
Image ID: 27671
Stars over the Tower of Babel, starry night, Arches National Park, Utah.
Location: Arches National Park, Utah
Image ID: 27847
Milky Way and stars over Crater Lake at night. Panorama of Crater Lake and Wizard Island at night, Crater Lake National Park.
Location: Crater Lake National Park, Oregon
Image ID: 28640
Panorama dimensions: 5244 x 9702
Blue Moon, Full Moon at Sunset over San Diego City Skyline, approaching jet with headlights appearing in front of the moon.
Location: San Diego, California
Image ID: 28753
Milky Way over the Watchman, Zion National Park. The Milky Way galaxy rises in the night sky above the the Watchman.
Location: Zion National Park, Utah
Image ID: 28590
Upper Yosemite Falls and lunar rainbow, moonbow. A lunar rainbow (moonbow) can be seen to the left of Yosemite Falls, where the moon illuminates the spray of the falls.
Location: Yosemite Falls, Yosemite National Park, California
Image ID: 27751
The Fire Wave by Moonlight, stars and the night sky, Valley of Fire State Park.
Location: Valley of Fire State Park, Nevada
Image ID: 28442
Panorama dimensions: 6250 x 6887
Full moon with 22-degree lunar halo, Joshua Tree National Park. The lunar halo (not to be cofused with lunar corona) forms when moonlight refracts through high altitude ice crystals. As no light is refracted at angles smaller than 22-degrees the sky is darker inside the halo.
Location: Joshua Tree National Park, California
Image ID: 30711
Downtown Los Angeles at night, street lights, buildings light up the night.
Location: Los Angeles, California
Image ID: 27727
Star Trails over the San Diego Downtown City Skyline. In this 60 minute exposure, stars create trails through the night sky over downtown San Diego.
Location: San Diego, California
Image ID: 28383
Milky Way during Full Lunar Eclipse over Arch Rock, Joshua Tree National Park, April 4 2015. The arch and surrounding landscape are illuminated by the faint light of the fully-eclipsed blood red moon. Light from the sun has passed obliquely through the Earth's thin atmosphere, taking on a red color, and is then reflected off the moon and reaches the Earth again to light the arch. The intensity of this light is so faint that the Milky Way can be seen clearly at the same time.
Location: Joshua Tree National Park, California
Image ID: 30717
Panorama dimensions: 8903 x 14184
Milky Way and Stars over Broken Arch, Arches National Park, Utah.
Location: Broken Arch, Arches National Park, Utah
Image ID: 29237
Panorama dimensions: 5882 x 15117
Milky Way arches over Delicate Arch, as stars cover the night sky.
Location: Arches National Park, Utah
Image ID: 27850
Milky Way and stars over Crater Lake at night. Panorama of Crater Lake and Wizard Island at night, Crater Lake National Park.
Location: Crater Lake National Park, Oregon
Image ID: 28643
Radio telescope antenna, part of the Very Long Baseline Array (VLBA). The Very Long Baseline Array (VLBA) is a system of ten radio telescopes which are operated remotely from their Array Operations Center located in Socorro, New Mexico, as a part of the National Radio Astronomy Observatory (NRAO). These ten radio antennas work together as an array that forms the longest system in the world that uses very long baseline interferometry.
Location: Big Pine, California
Image ID: 28787
Lunar eclipse sequence. While the moon lies in the full shadow of the earth (umbra) it receives only faint, red-tinged light refracted through the Earth's atmosphere. As the moon passes into the penumbra it receives increasing amounts of direct sunlight, eventually leaving the shadow of the Earth altogether. October 8, 2014.
Image ID: 29411
Panorama dimensions: 8000 x 8000
Milky Way and Stars through Wilson Arch. Wilson Arch rises high above route 191 in eastern Utah, with a span of 91 feet and a height of 46 feet.
Location: Wilson Arch, Moab, Utah
Image ID: 29275
The Milky Way galaxy arcs above Arch Rock, panoramic photograph, cylindrical projection.
Location: Joshua Tree National Park, California
Image ID: 26848
Panorama dimensions: 6121 x 10275
Star trails and Arch Rock. Polaris, the North Star, is at the center of the circular arc star trails as they pass above this natural stone archway in Joshua Tree National Park.
Location: Alabama Hills Recreational Area, California
Image ID: 27709