If you want to watch some absolutely astounding videos on the cosmos, check out the videos from Spike Psarris. Chocked full of amazing facts about the Universe. https://www.creationastronomy.com
For example, I did not realize that not only are there millions of galaxies, but that each one of them has hundreds of billions of stars! So when God compared the number stars with the sands of the seashores, a fact that mankind could not have known for thousands of years, He was telling the absolute truth. And of course, mankind could only see as many stars as were visible with the naked eye, until relatively recently.
There are believed to be well over one hundred billion other galaxies.