关于这张图
S125-E-007489 (14 May 2009) --- In this close-up scene featuring astronaut John Grunsfeld performing a spacewalk to work on the Hubble Space Telescope, the reflection in his helmet visor shows astronaut Andrew Feustel taking the photo as he's perched on the end of the Canadian-built remote manipulator system arm. The mission specialists are performing the first of five STS-125 spacewalks and the first of three for this duo.
