17 pictures that show how mind-bogglingly large the Universe is

[IcyPeas]

5. My brain cannot even imagine....

The size of our visible Universe (yellow), along with the amount we can reach (magenta). The limit of the visible Universe is 46.1 billion light-years, as that’s the limit of how far away an object that emitted light that would just be reaching us today would be after expanding away from us for 13.8 billion years. However, beyond about 18 billion light-years, we can never access a galaxy even if we traveled towards it at the speed of light. Beyond the limits of the observable Universe lies more Universe, up until the limits imposed by wherever inflation didn’t end at the same time it did where our hot Big Bang occurred. That limit, if it exists, has not been discovered.