The pair live-stream the spacewalk from their helmets
Space
Window on Infinity: A New Year’s Photo Album From Space
The universe has been around for 13.8 billion years, and has been gorgeous for every one of them—as this year-end collection of images from 2013 helps prove.
NASA Astronauts Make Rare Christmas Eve Spacewalk
Update, 2 p.m. ET: The astronauts have finished their repairs, reports NBC News.
U.S. astronauts Rick Mastracchio and Michael Hopkins are making a rare Christmas Eve spacewalk to fix vital cooling systems on the International Space Station.
Earthrise on Christmas Eve: The Picture That Changed the World
The first men to orbit the moon knew they were on an epic journey, but they never imagined the impact of a single image
NASA Spacewalkers Begin Urgent Repairs
A malfunctioning pump has halted research and left the International Space Station vulnerable
World’s First Robot Astronaut Makes Space Station Small Talk
Conversed with astronauts on International Space Station
New European Satellite Set to Study 1 Billion Stars
Data from the mission could help scientists determine the Milky Way’s origin
Study Finds Milky Way Has Four Arms, Not Two
A 12-year galactic survey unveils two overlooked arms
NASA Plans Spacewalks to Repair Space Station
After cooling system breaks down
Very Sad Planet Orbits Very Sad Star
Even the failed star known as a brown dwarf may have planetary company