Guarantee of Authenticity: Precision Glass Tagging

A new laser technology, designed to create precise lenses and mirrors for space telescopes, is able to inscribe numbers inside glass without damaging it. The laser operates in a manner similar to lasers used in laser eye correction, by beaming energy through the surface of the glass to make cha...

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The Authoritative Guide to Global Space Activity, Packed with Over a Decade of Data, Resources, and Information.