Goddard engineers have successfully completed their third robotic refueling test on ISS, using the Canadian dual robot arm Dextre.
The operation were controlled from Goddard, using a variety of robots to view, inspect, and complete the operations remotely. The goal is to demonstrate robotic engineering that can later be used to repair and service a variety of already orbiting satellites.
One detailed mentioned at the very end of the article I thought very significant and did not involve robotic refueling: It appears this project also
…successfully stored liquid methane for four months with zero boil off, demonstrating a system which will dramatically lower fluid loss and eliminate the need for oversized tanks and extra propellant.