Spacewalkers Begin Second Excursion to Repair Cosmic Particle Detector

Two astronauts switched their spacesuits to battery power this morning at 7:02 a.m. EST aboard the International Space Station to begin a spacewalk planned to last about six-and-a-half hours. Expedition 61 Commander Luca Parmitano of ESA (European Space Agency) and NASA Flight Engineer Andrew Morgan will venture outside the International Space Station for the second in a series of complex spacewalks to replace a cooling system on the Alpha Magnetic Spectrometer (AMS), a cosmic ray detector.

Parmitano is designated extravehicular crewmember 1 (EV 1), wearing the suit with red stripes, and with the helmet camera labeled #11. Morgan is designated extravehicular crew member 2 (EV 2), wearing the suit with no stripes, and with helmet camera #18.

In addition to revitalizing an important piece of scientific equipment, the process of creating the tools and procedures for these spacewalks is preparing teams for the types of spacewalks that may be required on Moon and Mars missions. The tools include plumbing instruments to cut into the cooling lines, new screwdriver bits and devices to capture the fasteners the astronauts remove from AMS. Learn more about the unique tools developed for the spacewalks to repair AMS.

Watch the spacewalk on NASA TV and on the agency’s website.

Follow @space_station on Twitter for updates online. Learn more about the International Space Station online, including additional information about the current crew members.