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Multi-order diffractive optical elements could lead to extremely light space telescopes

University of Arizona Project Nautilus aims to create a space telescope that can survey transiting exo-earths for biosignatures 1000 light years away.

John Wallace

The proposed Nautilus telescope, with optics consisting of a number of MODE lenses (not depicted in this drawing), has a light-collecting area more than twice that of the James Webb Space Telescope.

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