NASA astronaut Tim Kopra in the Quest airlock during the 21 December 2015 spacewalk.
ESA astronaut Tim Peake supported the spacewalk from inside the Station and took this picture with the comment: “What a great day! Hard work getting Tim Kopra and Scott Kelly safely out and back but they were awesome.”
Tim’s six-month Principia mission will see him work on over 30 experiments for ESA.
Connect with Tim on social media at: timpeake.esa.int