if we traveled back in tiem, the galaxies would have been blank compared to where they are now
If we were to travel back in time, the galaxies would not be blank, but they would be in different positions compared to their current locations. Galaxies are vast systems of stars, gas, and dust held together by gravity, and they have been developing and evolving throughout cosmic history. The positions and configurations of galaxies are constantly changing due to the expansion of the universe and the gravitational interactions between them.
If we were to go back in time, we would observe galaxies at different stages of their evolution, potentially witnessing the formation of early galaxies or the collisions and mergers of galactic structures. However, it's important to note that our understanding of the early universe is still developing, and many mysteries remain. So, while the galaxies would not be blank, our perception and knowledge of them would certainly be different.