The universe is such an amazing place that we know so little about. This universe is full of secrets and miracles we yet have to discover. If we go more in-depth in the universe and try counting the stars, we would rapidly understand that it would be impossible with today's modern technology. It is like trying to count the number of sand grains on a beach, indeed, we still have no clue about the edges of the universe or how many more galaxies are still out there to discover. so based on that argument we can say very clearly that counting the real number of galaxies is simply not possible, we can only estimate. Although estimates vary among different experts, the general consensus is that there are at least between 100 billion and 200 billion galaxies in our universe. Well... try to think about that for a moment, and now throw in billions of stars in each galaxy! It is really spectacular how big our universe is (source). This number could very easily be in the trillions for all we know.
Take our galaxy, the Milky Way Galaxy for example, which measures to about 120,000 light years across (it would take light that many years to travel across the galaxy), and contains up to 400 billion stars. Again, that’s billions of galaxies that contain billions of stars. (source)
In the video below, a team of scientists gathered data on more than 8000 galaxies that surround the one we live in, also mentioned above, the Milky Way galaxy. They mapped each galaxies movement and position in space, and discovered that the Milky Way galaxy is part of one giant system that contains a number of other galaxies, referred to as a super cluster.
Anything to do with space is mind altering to me, so for those of you who are wondering, that’s why I put it in the title.