NASA @NASA
LIVE NOW: Two Russian cosmonauts prepare to venture outside of the @Space_Station to conduct a 6.5 hour #spacewalk to retrieve science experiments and conduct maintenance on our orbiting laboratory. Watch: https://t.co/BPrw95ZWHC. Ask questions using #AskNASA https://t.co/5YQ86EM2Wf — PolitiTweet.org