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Easter egg
Elizabeth Young (graduate student)
Department of Mechanical and Aerospace Engineering
This is a microscope image of glass coated first with aluminum and then with photoresist, a light-sensitive material used to form a patterned coating on a surface. The darker patches are places where the photoresist has been exposed by a laser and will eventually lead to holes in the aluminum. This picture represents part of a coronagraph mask manufacturing process. This optical mask helps a telescope directly image exoplanets (planets outside our solar system).