Science & Exploration

Thomas Pesquet completes spacewalk

16/01/2017 2047 views 27 likes
ESA / Science & Exploration / Human and Robotic Exploration / Proxima

ESA astronaut Thomas Pesquet completed his first spacewalk last Friday together with NASA astronaut Shane Kimbrough. The duo spent five hours and 58 minutes outside the International Space Station to complete a battery upgrade to the outpost’s power system.

Shane Kimbrough spacewalk
Shane Kimbrough spacewalk

The main task was to replace nickel-hydrogen batteries that store electricity from the Station’s solar panels with newer lithium-ion batteries that arrived recently aboard Japan’s cargo vessel.

Thomas and Shane’s speed allowed them to perform a number of extra tasks once they had installed the batteries. They retrieved a failed camera, installed a protective cover on an unused docking port, moved handrails in preparation for future spacewalks and took pictures of external facilities for ground control to analyse.

Power upgrade

Station solar panels and batteries
Station solar panels and batteries

This spacewalk was the second in a week to upgrade the Station’s power supply. NASA astronaut Peggy Whitson and Shane spent six hours and 32 minutes outside installing adapter plates and connecting three of the six new batteries on 6 January.

They practised this spacewalk for months on Earth at NASA’s Johnson Space Center, USA, and spent the last few weeks in space working intensively to prepare the spacesuits and tools for the sortie.

Luca at Houston mission control
Luca at Houston mission control

At NASA’s mission control in Houston, ESA astronaut Luca Parmitano directed the duo as lead communicator – a recognition of ESA’s expertise in Station operations.

Luca is an experienced spacewalker himself, undertaking two sorties during his six-month mission in 2013. Luca guided the pair in space through their complex tasks, offering radio support and informing them of their extra tasks later in day.

Thomas commented on the spacewalk: “I have so much respect for all the teams who designed, built, launched the hardware and planned, tested, conceived, conducted the spacewalks... And all the teams who trained us so that we did not make too many mistakes! My hat off to everybody.”

With the time-consuming spacewalk over, the Station returns to normal operations, with many experiments using weightlessness to advance our knowledge.

Thomas is performing around 50 scientific experiments for ESA and France’s CNES space agency, as well as taking part in many more research activities for the other Station partners.

Thomas spacewalker
Thomas spacewalker

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