Underground Testing and Mining

Images depict geological formations from nuclear testing and mining sites, featuring earthy tones and rugged textures in underground environments.

Shaky, CU, astronaut using a metal detector on the moon

$This enhanced-color view obtained on September 25, 1998 from NASA's Galileo spacecraft shows an intricate pattern of linear fractures on the icy surface of Jupiter's moon Europa.$

$Marcellus Shale natural gas bearing rock showing natural fracturing exposed weathered surface gas extracted using controversial fracking or hydraulic fracturing New York, USA Date:$

$NASA's Mars Exploration Rover Opportunity took the component images of this enhanced-color scene during the mission's walkabout survey of an area just above the top of Perseverance Valley, in preparation for driving down the valley. The location is just outside the crest line of the western rim of Endeavour Crater, looking toward the northwest. The rim crest at the top of Perseverance Valley is off the scene to the right. A swath across the top half of the image is lined with dark rocks, especially on the far side. The swath runs east-west, and one possible history under investigation is that it was a channel into a lake perched against the edge of the crater billions of years ago. Another hypothesis is that the linear pattern of the rock piles is related to radial fractures from the impact that excavated Endeavour Crater. One goal of the walkabout is to determine whether a close look at the rocks will provide clues to the history of the site. For scale, the width of the swath near the$