RT @NASA: LIVE on NASA TV: Astronauts prepare to begin today’s @Space_Station spacewalk. Watch: nasa.gov/nasatv http://t.co/TzKcPbbfJc
RT @NASA: LIVE on NASA TV: Astronauts prepare to begin today’s @Space_Station spacewalk. Watch: nasa.gov/nasatv http://t.co/TzKcPbbfJc