May 24, 2011
NASA's Astronomy Picture of the Day (APOD): apod.nasa.gov/apod/ap110524.html
Featured in National Geographic's Daily Dozen: ngm.nationalgeographic.com/your-shot/daily-dozen
EarthShots.org 'Photo of the Day': www.earthshots.org/2011/06/silent-effigy-by-brad-goldpain...
Double Arch in Southern Utah, was formed differently than most arches in the Arches National Park. It is what is known as a pothole arch, formed by water erosion from above rather than more typical erosion from the side. The larger opening has a span of 148 feet and a height of 104 feet. It lies atop an underground salt bed called the “Paradox Formation” which is responsible for the arches. The visible rock formation is the salmon-colored Entrada Sandstone and the tan-colored Navajo Sandstone. In this picture, color and texture of the stone was achieved by the rock momentarily illuminated by a light source and using a 39 second exposure. Visible in the background is the distant glow of light pollution from nearby Moab, Utah. The dark rock structures in the lower left are eroded monoliths deposited over 300 million years ago when seas flowed into the region and eventually evaporated. Visible in the night sky is the Milky Way Galaxy and its billions of stars and planets. While fending off mice from my trail mix, I framed the arches and the distant galaxy to create a connection between the unearthly landscape and the night sky.
Lots more to come from Arches so stay tuned!
See all of my 'Night Sky' images and time-lapse videos HERE.
**Full resolution images for publication use can be provided upon request. Please do not use my images on blogs, personal or professional websites, or any other digital media without my explicit permission. Thank you.**