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Richard Rhodes, the energy historian whose recent book Energy: A Human History describes the technologies and innovations that have changed energy over centuries, said an Italian physicist, Cesare Marchetti, discovered a hard truth in the…

The Falcon 9 rocket is about to be launched for the Transporter 1 mission on the launch pad in Florida.SpaceXSpaceX added another rocket to the record books on Sunday with the first mission of its "rideshare" program, which will launch…