RT @ScienceAlert: WATCH: NASA astronauts took a GoPro on a spacewalk, and the footage is incredible! buff.ly/1DYWJrt http://t.co/05odNp1SSO
RT @ScienceAlert: WATCH: NASA astronauts took a GoPro on a spacewalk, and the footage is incredible! buff.ly/1DYWJrt http://t.co/05odNp1SSO