Scientists in China have transmitted encrypted images a record 12,900 kilometers, paving the way for quantum messaging ...

Voyager 1 has been responding to NASA's data requests with tangles of 1s and 0s, none of which have made sense to anyone at the agency. But now, thanks to a "poke command" issued in March ...

The satellite is “a significant step forward ... the two parties can work out a selection of measured 1s or 0s to use as a secure key. If an eavesdropper tries to intercept the message ...