Keywords: SpaceBeadsSRM 034.jpg Two microscopic photographs of NASA 10 micrometer spheres taken August 31 1984 - Monodisperse latex reactor system photograph mounting sheet STS-6 National Institute of Standards and Technology 1984-08-31 National Institute of Standards and Technology PD-USGov-NIST PD-USGov National Bureau of Standards National Institute of Standards and Technology Space Beads |