Jackie James
UCS Science Network
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Jackie James
US Navy
Jonathan Milne, Lighthawk
Inside the platform of the massive Arecibo Radio Telescope, once the largest radio telescope in the world. Arecibo Observatory/Paulo Friere
National Guard
Richard Eldridge/US Air Force
Alex Antoniadis/Unsplash
Public domain
NREL
Nitish Meena/Unsplash
Jabbi/Wikimedia
Jabbi/Wikimedia
RainerPlendl/iStockphoto
Omari Spears/UCS
NOAA
Jo Zimny Photos/Flickr
U.S. Air Force photo/Staff Sgt. Kamaile O. Long
mtiger88/flickr
Paige Greenwood
Louisiana National Guard
Matt Wildbore/Unsplash