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Home New technology developed at NASA’s Jet Propulsion Laboratory can locate firefighters wearing a backpack-sized device. Engineers are working to shrink the device to fit in a pocket. (Paul Wedig/DHS-Science and Technology Directorate.) New technology developed at NASA's Jet Propulsion Laboratory can locate firefighters wearing a backpack-sized device. Engineers are working to shrink the device to fit in a pocket. (Paul Wedig/DHS-Science and Technology Directorate.)

New technology developed at NASA’s Jet Propulsion Laboratory can locate firefighters wearing a backpack-sized device. Engineers are working to shrink the device to fit in a pocket. (Paul Wedig/DHS-Science and Technology Directorate.)

New technology developed at NASA's Jet Propulsion Laboratory can locate firefighters wearing a backpack-sized device. Engineers are working to shrink the device to fit in a pocket. (Paul Wedig/DHS-Science and Technology Directorate.)

New technology developed at NASA’s Jet Propulsion Laboratory can locate firefighters wearing a backpack-sized device. Engineers are working to shrink the device to fit in a pocket. (Paul Wedig/DHS-Science and Technology Directorate.)

A test of a new tracking technology, which can be followed on a computer map. JPL may have solved a longstanding technology problem for firefighters: how do you track them inside of buildings, which often block radio signals? (Paul Wedig/DHS-Science and Technology Directorate.)
A close-up of a receiver used outside a building to test a new firefighting tracking technology. (Paul Wedig/DHS-Science and Technology Directorate.)