The nearest star beyond our own Sun is about four light-years away - or about 25 trillion miles. The farthest any man-made object has traveled from Earth (Voyager I) is currently 15 billion miles away. That is, Voyager I, launched in 1977, is about one sixteen hundredth of the way to the nearest star outside our Solar System … after nearly fifty years traveling in space. The Andromeda Galaxy is over 600,000 times as far away as that star. So that galaxy is about a billion times farther away than the most distant thing we have launched into space.
See all those stars in the photo below? They are all in our little section of the Milky Way galaxy. Every single one of those is many times farther away than Proxima Centauri (the nearest star I mentioned). That arrow locates the Andromeda Galaxy, which is about twice the size of our own galaxy, the Milky Way.
So maybe that’s the reason.