.@Thom_astro is still inspecting the @Space_Station's cooling system for leaks pic.twitter.com/SKpQNpq6JW — Human Spaceflight (@esaspaceflight) March 24, 2017

.@Thom_astro is looking further down the cooling pipe under its protective insulation to try and pinpoint the leak. #spacewalk #allezthomas pic.twitter.com/Sus3lejMSQ — Human Spaceflight (@esaspaceflight) March 24, 2017

.@Thom_astro is filming cooling pipes for later analysis where a robot detected a small leak a few weeks ago. #spacewalk #AllezThomas pic.twitter.com/O5J1LK7RIM — Human Spaceflight (@esaspaceflight) March 24, 2017

One hour into the #spacewalk @Thom_astro is setup to inspect the cooling system with @astro_kimbrough working on the computer upgrade pic.twitter.com/elBFqIGZKZ — Human Spaceflight (@esaspaceflight) March 24, 2017

.@Thom_astro is heading over to the "P1 truss" to inspect a small ammonia leak, first he will get a foot restraint to help him work pic.twitter.com/n46TDXsLm1 — Human Spaceflight (@esaspaceflight) […]

For detailed tweets of today's #spacewalk, follow @esaspaceflight and @Space_Station. For French: @ESA_fr @CNES #FF #AllezThomas — ESA (@esa) March 24, 2017

.@Thom_astro is first to exit @Space_Station at the start of today's #spacewalk – due to last 6.5 hours. Watch live: https://t.co/ZqMKiRu946 pic.twitter.com/arnesAGoNp — ESA (@esa) March 24, 2017

A view from outside as the hatch is open. #AllezThomas #spacewalk pic.twitter.com/cBSJvOXnY6 — Human Spaceflight (@esaspaceflight) March 24, 2017

Follow today's #spacewalk live including schedule and common terms through this link. Questions? #AskESA https://t.co/iv10IxLzki pic.twitter.com/GAu3Ecz7u2 — Human Spaceflight (@esaspaceflight) March 24, 2017

Slightly ahead of schedule @Thom_astro has entered the Space Station airlock with @astro_kimbrough following. #spacewalk #EVA40 pic.twitter.com/YWyY0SWyBW — Human Spaceflight (@esaspaceflight) March 24, 2017