Robert Strain, Director of NASA's Goddard Space Flight Center speaks, Wednesday evening, Sept. 9, 2009, during a celebration of the Hubble Legacy at the National Air and Space Museum in Washington. Astronomers declared NASA's Hubble Space Telescope a fully rejuvenated observatory with the release Wednesday of observations from four of its six operating science instruments. Photo Credit: (NASA/Bill Ingalls)

Robert Strain was the center director of NASA's Goddard Space Flight Center in Greenbelt, Md. Strain assumed his post on Aug. 4, 2008. Strain was replaced by Christopher Scolese on March 5, 2012.

jsc2023e010175 (2/28/2023) --- This image shows a monospecies biofilm through the view of a scanning electron microscope. The image was colored to visualize the bacterial cells (orange) embedded in the biofilm matrix (blue). The biofilm was formed by a strain of the bacterial species Staphylococcus capitis that was isolated from the International Space Station. The ESA-Biofilms investigation studies bacterial biofilm formation and antimicrobial properties of different metal surfaces under spaceflight conditions in altered gravity. The image was taken as part of the preflight experiments for ESA-Biofilms together with the Robert Koch Institute in Berlin, Germany. Image courtesy of DLR, CC BY-NC-ND 3.0.