NASA astronaut Karen Nyberg
#NASA #SpaceTravel #SpaceX #Falcon9 #SpaceExploration #Astronomy #Physics #ElonMusk #Apollo #SpaceShuttle #HighDefinition #RocketLaunch #PaleBlueDot #CarlSagan #Astrophysics #Science #Galaxy #Andromeda #BlackHole #Nebula #Hubble #Telescope #Hubble #Pluto #DarkMatter #IsaacNewton #Stars #SolarSystem #astronaut #spacewalk by astropular