If you were to print it in a native resolution, it would roughly be 18,4 m x 5,9m.
Kind of a tragedy really, hundreds of billions of stars, probably trillions of planets and moons, and an almost certain chance of sapient, sentient life. All so far away that communication let alone interaction is impossible. By the time any messenger reached them, if it managed to traverse all the dangers in between, their civilisation might be gone.
Edit: Same for our Milky Way I suppose.