CAPE CANAVERAL, FL - While you were getting up early Sunday morning for church, or for brunch (hey, who are we to judge), two astronauts also had their alarm clocks set for an early-morning wake up call.
Astronauts Terry Virts and Barry Wilmore successfully completed a three-day spacewalk outside the International Space Station. Sunday morning's nearly seven-hour walk was their last.
They set up antennas, cables, navigation aides and all these other fancy communication devices. It sounds complicated, but simply put, they're basically making parking spots at the space station for new spacecrafts. This will allow U.S. commercial spacecraft crews launching from Florida to dock at the International Space Station. Officials say those spacecrafts are being developed by Boeing and Space Exploration Technologies, or Space-X.