Mon, Mar 02, 2015, 04:14 PM
Two U.S. astronauts left the International Space Station on Sunday for a spacewalk, for the third time in just over a week. New work is being carried out on the outside of the international space station in preparation for the eventual arrival of new commercial space taxis. This spacewalk was intended to install communication and navigation equipment. The ISS is preparing for the eventual arrival of spacecraft being developed by Boeing and SpaceX.