If you started traveling at the dawn of human civilization from one edge of the Milky Way galaxy to the other AT THE SPEED OF LIGHT, you would now be about 10% of the way across. That's how vast space is.
If you started traveling at the dawn of human civilization from one edge of the Milky Way galaxy to the other AT THE SPEED OF LIGHT, you would now be about 10% of the way across. That's how vast space is.