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New image shows exposed bedrock in Hale Crater on Mars

New image shows exposed bedrock in Hale Crater on Mars

Science
May 31 (UPI) -- NASA has released a new image from its Mars Reconnaissance Orbiter that shows the red planet's Hale Crater -- a large impact crater with more than 62 miles of intriguing physical features. The crater contains active gullies, extensive icy ejecta flows and active recurring slope lineae, which are long marks that are dark or bright. NASA has released images of these recurring slope lineae within the crater before. In 2015, the agency suspected that the streaks, which appeared to flow downhill, were caused by contemporary flowing water. Planetary scientists had recently discovered hydrated salts -- trace amounts of water mixed with heavy doses of salts -- on the slopes of the crater, which the agency said at the time confirmed the theory. Similar features on Earth are caused...