The DARPA Subterranean Challenge explores innovative approaches and new technologies to rapidly map, navigate, and search complex underground environments, Edgar Experimental Mine, April 2019 (DARPA/Colorado School of Mines)
The DARPA Subterranean Challenge explores innovative approaches and new technologies to rapidly map, navigate, and search complex underground environments, Edgar Experimental Mine, April 2019 (DARPA/Colorado School of Mines)

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Photo by: DARPA |  VIRIN: 190723-D-BD104-058.JPG