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Donald Trump and Vladimir Putin attend their bilateral meeting at the G20 Osaka Summit in Osaka, Japan, on June 28, 2019. (Mikhail Svetlov via Getty Images)
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(VOLKER STEGER/SCIENCE PHOTO LIBRARY)
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Telescope at the quantum communication ground station in Xinglong, north China's Hebei Province, China, November 25, 2016 (Xinhua/Jin Liwang via Getty Images
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Quantum computer core (RICHARD KAIL)
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(Photo credit: Chesnot/Getty Images)