Remember we are small, very small, in the whole scheme of things. Compared to a planet, we are small, compared to a galaxy, we are small, so therefore I think it's fair to say, we are small.
The wonder of the universe continues to baffle us as humans, it's imagery and it's complexity. We strive to understand the universe, everyday someone is researching and formulating new ideas about how to further understand the universe.
All that is known, you will never know, and that which is unknown you may find out. That which is known is unknowable to any single person, until they develop that chip to put in your brain that gives you every fact known to man into your brain.
Never stop learning about that which is known, and one day the unknown to you, will be known.