These images teach us there are at least 170,000,000,000 galaxies in the entire observable Universe.
Good piece on one of mankind’s greatest astronomical achievements, the Hubble Space Telescope. As if 170,000,000,000 galaxies isn’t amazing enough, this only encompasses the observable universe.
The entire universe is estimated to be a minimum of 250 times the size of the observable universe. Which means somewhere in the neighborhood of 42,500,000,000,000 galaxies. This is actually a conservative estimate.
Some scientists believe the universe is bigger. Much bigger. As in 10 billion trillion times bigger. Think about that. I’ll forgive you if your head explodes trying to comprehend this because it really is impossible for us to grasp the sheer scale of space.
The whole universe is to the observable universe, as the observable universe is to an atom.
As amazing and successful as the Hubble mission has been, I can’t wait for the launch of NASA’s James Webb Space Telescope in 2018. It will greatly expand what we currently know of as the observable universe and literally show us things no human has ever seen before.