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China Sends ‘Hack Proof’ Code From Satellite to Earth

China has sent an unbreakable code from a satellite to the Earth, marking the first time space-to-ground quantum key distribution technology has been realized, state media said Thursday.

China launched the world’s first quantum satellite last August, to help establish “hack proof” communications, a development the Pentagon has called a “notable advance.”

The official Xinhua news agency said the latest experiment was published in the journal Nature Thursday, where reviewers called it a “milestone.”

Quantum key technology

The satellite sent quantum keys to ground stations in China between 645 km (400 miles) and 1,200 km (745 miles) away at a transmission rate up to …read more

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