Pioneer 11 swung past Jupiter on December 4, 1974, and will travel on to Saturn before it is accelerated on a course to the far side of the galaxy. (scientificamerican.com)
THE most precise measurement yet of an object on the far side of the galaxy's centre is paving the way for a definitive map of the other side of the Milky Way. (newscientist.com)
It turns out that using the Earth's orbit as a baseline is enough to determine the distance of any object in the Milky Way - even objects on the far side of the galaxy. (galaxymap.org)