This is one of four original folding mirrors from the f/12.9 wide-field mode of the first Wide-Field Planetary Camera (WFPC-1) flown on the Hubble Space Telescope (HST) on its 24 April 1990 launch. The WFPC-1 was removed from the HST during the servicing mission launched on 2 December 1993 that installed the correcting optics that compensate for the flawed primary mirror. One complete electro-optical channel from the wide field mode assembly, of which this element was a part, was transferred to NASM by NASA's Goddard Space Flight Center in September 1999. It is now on display in the Explore the Universe gallery.
Transferred from NASA, Goddard Space Flight Center.