2. NASA’s Rick Mastracchio and Mike Hopkins are conducting the second spacewalk in four days to repair the ISS’s cooling system. It’s a six-and-half-hour job!
4. Good luck, guys!
NASA astronaut Michael Hopkins, in a photo tweeted by NASA on Sunday, Dec. 22.
- At least 10 people, including the gunman, are dead after a shooting at a mall in Munich, Germany.