Following a Successful set afloat, NASA’s Lucy Spacecraft Hits a Solar Arr…

NASA’s Lucy spacecraft deploying its solar arrays. Credit: NASA’s Goddard Space Flight Center Following a successful set afloat on October

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Here’s why China may have tested a new intercontinental hypersonic mis…

China’s DF-17 missile is a medium-range hypersonic weapon capable of traveling over five times the speed of sound. Mark Schiefelbein/AP

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