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A New USGS Map Lets You See the Layers of Rock and Sediment Hidden Directly Beneath Your Feet

In late August, the U.S. Geological Survey quietly released a new tool that could reshape how Americans understand the ground ...
NASA

Crystal-Laden Martian Rock Examined by Curiosity’s Laser Instrument

Due to the lapse in federal government funding, NASA is not updating this website. As NASA's Mars rover Curiosity is progressing toward Mount Sharp, researchers are using the rover's instruments to ...