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Science&Tech

China’s satellites are dodging US eyes in space

The Pentagon has long been closed-mouthed about a family of U.S. spy satellites that since 2014 have kept an eye on foreign spacecraft in geosynchronous orbits. That hasn't stopped Chinese satellites from dodging them.U.S.…

So you want to build a quantum computer?

LEMONT, Ill.—For all the hype, funding and policy around quantum computing, there is still a lot of basic scientific research to be done to bring a quantum information system to life. Leading researchers at Argonne National Laboratory…

Duct fans fly again—in drone form

Could a one-minute test flight of a half-century-old propulsion concept lead to the next big thing in logistics?On Tuesday, Piasecki Aircraft Corporation announced that a drone had executed a pair of hovering tests on Sept. 6 at its…

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