Space image: Making the grade
Thursday, March 3, 2011 - 08:30
in Astronomy & Space
NASA astronauts Steve Bowen and Alvin Drew (partially obscured at center) conducted the STS-133 mission's spacewalk on Monday, Feb. 28.
NASA astronauts Steve Bowen and Alvin Drew (partially obscured at center) conducted the STS-133 mission's spacewalk on Monday, Feb. 28.