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Water Molecules
Image
Composite image of water molecules on the surface of an asteroid
Courtesy of NASA/Carla Thomas/SwRI
Caption
Using data from NASA’s Stratospheric Observatory for Infrared Astronomy (SOFIA), Southwest Research Institute scientists have discovered, for the first time, water molecules on the surface of an asteroid. Scientists looked at four silicate-rich asteroids using the FORCAST instrument to isolate the mid-infrared spectral signatures indicative of molecular water on two of them.