
In this 1957 photo, George Cooper, a test pilot for the National Advisory Committee for Aeronautics, or NACA, stands next to a North American F-100, a supersonic fighter tested by the NACA. via NASA https://ift.tt/hEwgfIi
These X-ray computed tomography (XCT) scans of particles from asteroid Bennu show the most common types of crack networks observed in Bennu...
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