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Latest News

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  • Smithsonian Institution Position

    A Public Affairs Specialist position is open with our colleagues at the F.L. Whipple Observatory at Mt. Hopkins. It closes on Oct 31.

  • Fun Video!

    Check out a brief, captioned video of the actual aluminization of our primary mirror and hear comments by our staff during the process.

  • Aluminization Details

    The MMT primary mirror was successfully recoated on September 2, with the coating being uniform across the entire mirror. The measured reflectivity in the blue (at 400nm) is 91.6%, the best achieved at the MMT to date. A minor imperfection is a thin coating along a small area of the south edge (around 6:30) where the glass was shadowed by aluminum foil used to protect the mylar vacuum barrier. Take a look at a photo (you can zoom in), the reflectance plot, and a video of the shot!