The size of the universe that we can see

We estimate that there are 2 trillion galaxies.

If we were to say that each of these galaxies is the size of the Milky Way (obviously many are much smaller and others much larger)–there are 400 billion stars in the Milky Way alone.

It would take light 100,000 years to cross the Milky Way alone.

We think there is more past what we can see too. Much more in fact. Perhaps, infinite.

We can even begin to comprehend the size and scope of what is out there. Which is why humans focus so much on the small. It is what we think we can control.