Fellow astronaut and spacewalker Terry Virts is visible in the photo as a reflection in Wilmore’s visor.
NASA publicly released the image, taken during the first of three scheduled spacewalks being done to get the space station ready for the docking of commercial crew vehicles within several years.
NASA’s Facebook page.
The photo is the latest social media hit from space.
Many astronauts have taken space selfies in recent years, and now robotic missions are following their lead. The Mars Curiosity Rover took a selfie against the red Martian surface, and Rosetta, the European Space Agency’s (ESA) mission to Comet 67P/Cheryumov-Gerasimenko, also took a self-portrait.
Wilmore and Virts successfully completed all the scheduled work on their Saturday spacewalk, including the rigging of power and data cables on the Harmony module and re-pressurizing an airlock.
The astronauts’ next spacewalk is scheduled for Wednesday, February 25. NASA will cover the event starting Wednesday morning at 6 AM EST.