This is a narrated animation previewing the steps and activities to be performed by the International Space Station astronauts during the battery replacement spacewalk on Jan. 6.
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Cygnus cargo freighter leaves station, but its mission is not over
A commercial Cygnus supply ship left the International Space Station on Monday after delivering more than 5,000 pounds of cargo and experiments, ready to start a week of standalone operations to include a groundbreaking microgravity fire experiment and deployment of four commercial weather-monitoring CubeSats in orbit.

Mission Reports
Spacewalkers prep space station for future upgrades
Space station commander Chris Cassidy and Robert Behnken floated back outside Tuesday for their fourth spacewalk in less than a month, completing preparations for future upgrades including the eventual installation of an airlock that will allow commercial experiments to be moved into and out of vacuum as required.