Fresnel Telescope Will Spot M-Class Planets 30 Light Years Away

Scientists might be giving up on the notion of sending ridiculously large pieces of glass into space. Using a Fresnel-zone lens instead, astronomers at Observatoire Midi Pyrenees in France propose to take extremely high-contrast images at vast distances without a large lens or mirror. A 30-meter Fresnel telescope will… »5/02/08 10:45am5/02/08 10:45am