Tuesday, 10 October 2017

Where Does the Sand Come From?


This image from NASA's Mars Reconnaisance Orbiter (MRO) shows one possible place where sand grains are being produced on Mars today. via NASA http://ift.tt/2yUEv9G

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Solving Asteroid Bennu's Mysteries

These X-ray computed tomography (XCT) scans of particles from asteroid Bennu show the most common types of crack networks observed in Bennu...