Goddard engineers complete third robotic refueling test on ISS

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.