Martian Impact Crater
A dramatic, fresh impact crater dominates this image taken by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter on Nov. 19, 2013.
The crater spans approximately 100 feet (30 meters) in diameter and is surrounded by a large, rayed blast zone. Because the terrain where the crater formed is dusty, the fresh crater appears blue in the enhanced color of the image, due to removal of the reddish dust in that area. Debris tossed outward during the formation of the crater is called ejecta. In examining ejecta's distribution, scientists can learn more about the impact event. The explosion that excavated this crater threw ejecta as far as 9.3 miles (15 kilometers).
© NASA/JPL-Caltech/Univ. of Arizona
Kings Canyon, Watarrka National Park, Northern Territory, Australia
Kings Canyon is part of the Watarrka National Park in the Northern Territory, Australia. The walls of Kings Canyon are over 100 metres high, with Kings Creek at the bottom. Part of the gorge is a sacred Aboriginal site and visitors are discouraged from walking off the walking tracks.
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Melbourne Sunset from Williamstown
Amazing Williamstown view of Melbourne City after Sunset at the mouth of the Yarra River where it enters Hobsons Bay and Port Phillip, south-west of the Melbourne city centre.
© An La
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