What is the unknown? Persepctive or Fact?

What really is the unknown? Do find the unknown as something that differs between people or is the unknown simply a thing that we always find as a fact? Will we ever find a time where the unknown will never exist or will we always be in a web of unknowns and facts? WILL WE EVER KNOW EVERYTHING DESPITE WHAT SCIENTISTS SAY?

Science equals evidence equals pretty much correct, I think.

Philosophy enables us to explore what science cannot, but without what science has been able to established as facts, we can’t know if we are right or wrong.

Evidence people, evidence.