Lightweight, Flexible Lens Could be the Future of Space Telescopes

Holograms are useful for more than interesting-looking baubles in gift shops.  Materials scientists have used them for applications from stress/strain gauges to data storage systems.  It turns out they would also be useful in making extraordinarily lightweight, flexible mirrors for space telescopes.  A new study led by researchers at the Rensselear Polytechnic Institue shows how that might happen.

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