Two Russian cosmonauts completed their second spacewalk together, installing experiments and performing maintenance on the exterior of the International Space Station.

Expedition 73 commander Sergey Ryzhikov and flight engineer Alexey Zubritsky, both of the federal space corporation Roscosmos, were back in the vacuum of space on Tuesday (Oct. 28) to continue and expand on the work they began during an extravehicular activity (EVA) on Oct. 16. During this most recent outing, they spent 6 hours and 54 minutes mounting, relocating and cleaning hardware on the Nauka multipurpose laboratory module (MLM).

This EVA, like the one two weeks ago, began with Ryzhikov and Zubritsky opening the hatch on the Poisk Mini-Research Module-2, this time at 10:18 a.m. EDT (1418 GMT). After gathering their to

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