November 20, 2017 Video file Video file As part of NASA's Social Media Day, held November 3, 2017, the Space Geodesy Project provided a tour of the Goddard Geophysical and Astronomical Observatory (GGAO) to 50 social media users selected by NASA. View scenes from the tour, courtesy of Conner Sebreny.(11/20/2017) Maceo Blount standing next to the MOBLAS-7 SLR telescope (credit: Todd Neff) Maceo Blount and Ujla Tushar in the MOBLAS-7 control room during the tour (credit: Todd Neff)