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 ...
One of the spy technologies that's come to light in the recently-exposed alleged Russian spy ring is steganography, a word that comes from the Greek for “covered writing.” It’s a way to hide ...
A Sign in Space imagines how Earth might respond to a signal from aliens and invites the public to help decode an ET message. May 22, 2023, Mountain View, CA – What would happen if we received a ...
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