At the time of this writing, two Russian cosmonauts are floating in outer space, installing two cameras and scientific equipment outside the International Space Station, which circles Earth every 90 minutes.
Expedition 38 commander Oleg Kotov and flight engineer Sergey Ryazanskiy began the seven-hour spacewalk at their country's part of the space station, the Zvezda command module, at 8 a.m. Friday. Watch them work in real time on NASA's website here, thanks to a live stream from Kotov's space helmet, complete with views of toolboxes drifting in zero gravity.
A translator relays the cosmonauts' conversations in English. "Well, I can use my teeth maybe," joked one cosmonaut during the installation.
The spacewalk will be the last one this year for the station's six-man crew, according to NASA.
This holiday season has been a busy one for the astronauts aboard the International Space Station. NASA astronauts Mike Hopkins and Rick Mastracchio conducted spacewalks Saturday and Tuesday to repair a degraded ammonia pump module, which was shut down a few weeks ago. The module is part of an ammonia cooling system, which removes excess heat from inside the station.