Who refueled Voyager 1 ?
First discovered:
The object was discovered Oct. 19 by the University of Hawaii's Pan-STARRS 1 telescope during a nightly search for near-Earth objects, NASA said. Astronomers are currently working to point telescopes towards the object to obtain more data. Once that's done, the information will be analyzed so scientists can determine more about its origin and composition.
So Voyager's thrusters were fired up two months later. More hmmm...
Whatever it is, NASA is fairly certain it's a unique object.