Important data can be stored and concealed quite easily in ordinary plastic using 3D printers and terahertz radiation, scientists show. Holography can be done quite easily: A 3D printer can be used to ...

NASA has a history of doing interesting and unexpected things when it comes to its space missions. Recently, NASA successfully placed the Perseverance rover onto the surface of Mars. One of the most ...

Molecules like DNA are capable of storing large amounts of data without requiring an energy source, but accessing this molecular data is expensive and time-consuming. Researchers have developed an ...

A quantum disappearing act could make it possible to embed secure messages in holograms and selectively erase parts of them even after they have been sent. Quantum light signals are inherently secure ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

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Scientists are tweaking bacteria to send encrypted messages that can be shipped via snail mail on sheets of paper-like material called nitrocellulose. The recipient grows the bacteria with a select ...

Messages encrypted with the Pretty Good Privacy algorithm could fall prey to a technique that fools senders into decoding their own secret messages, according to ...