There are big plans for private companies SpaceX and Boeing to shuttle astronauts to the ISS next year, but if they are going to do that, the international team of astronauts on the ISS needs to setup a docking station first. NASA astronauts Kate Rubins and Jeff Williams will install the first of two planned international docking adaptors today, starting at 8:05 a.m. Eastern time, and you can watch the live stream above. The mission is scheduled to last about six hours as the two astronauts on a spacewalk connect the docking adaptor with some help from the space station's Candarm2 mechanical arm.

The docking adaptor was extracted from a SpaceX Dragon capsule yesterday. Rubins and Williams will attach the dock to a port in the space station, connect all the cables and electronic systems, and prepare the dock to receive manned spacecraft in the future.

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