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Full Honors Ceremony for Secretary of Defense Mark Esper 48374518666
Flickr The U.S. Army Checkpoint 91
Elon Musk, CEO of SpaceX and Tesla
high voltage electricity lines
Overhead photo of Heliogen's mirrored solar energy project which recently announced a major solar energy breakthrough.
The wind farm off Block Island, RI is the nation's first commercial use of offshore wind power and allowed the island to cease using diesel generators. (Photo: Ionna22)
Solar cell panels in the foreground, wind turbines in the middle ground, and electricity pylons in the background; unidentified location