The renovations to the space station mark the first time the ISS has been significantly updated since its construction finished in 2011. To make the ports, NASA plans a total of seven spacewalks for this year, three of which will be done by Wilmore and Virts. This week the two astronauts will prepare certain cables and communications gear, while future missions will involve rearranging some rather large station modules to make way for two new International Docking Adapters, which SpaceX will be delivering to the ISS later this year. All in all, NASA hopes to have the docks built and operating by the end of 2015.