If, as researchers believe, the 2l/Borisov comet comes from another galaxy this makes it a huge discovery: as the first comet from so far away and the second object from intergalactic space observed in the Solar System.
The team from the University of Warsaw say their unique map, which was based on observing 2,400 stars less than 250 million years old, is more accurate than models currently in use.
Named by the Polish astronomers who found them, the planets could be just two of millions floating through the galaxy. So far, though, scientists have only managed to locate a dozen or so rogues, which is why adding these two to the bunch is deemed important.
Some of the most beautiful and detailed images ever taken of the Milky Way have been released by the European Space Agency’s (ESA) Gaia space telescope, the data from which will be used to create the most comprehensive maps of our galaxy to date with the help of Polish astronomers.