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Greg Vaughn at USGS Astrogeology talks to visitors at the 2023 USGS Open House

By Southwest Biological Science Center
Greg Vaughn at USGS Astrogeology talks to visitors at the 2023 USGS Open House
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Greg Vaughn at USGS Astrogeology talks to visitors at the 2023 USGS Open House. Grover is pictured to Greg's right. Photo courtesy of Lori Pigue, USGS Astrogeology.

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Public Domain.

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