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Eco-photos of the week: May 22-28

May 27, 2011, 6:29 a.m.
NASA astronaut and Mission Specialist Andrew Feustel tinkers with repairs during the STS-134 mission's second spacewalk on May 22.

Photo: NASA

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STS-134 spacewalk

NASA astronaut and Mission Specialist Andrew Feustel tinkers with repairs during the STS-134 mission's second spacewalk on May 22.

During the spacewalk, Feustel and Mission Specialist Michael Fincke (out of frame) refilled one of the station's cooling loops with ammonia and lubricated one of the station's massive solar alpha rotary joints.