NOW: The first #AllWomanSpaceWalk 👩‍🚀 w/ @Astro_Christina & @Astro_Jessica is underway at the @Space_Station. Make #History w/ @NASA. Join @ChrisG_NSF @w00ki33 @JohnKrausPhotos w/ host @1andrewking. #Space #Science #Electron #RocketLaunch #WomenInSTEM