Good research begins with a question and ends up with new ones. What does this mean exactly?

A good research begins with a question. The question is what you want to find out more about. You would usually want an answer after finishing the research on the question but you end up with more questions. When, one part is answered, there are more things that we become curious about. Lt’s say your research question is: who made google? The answer would be the two stanford students. But then, you wonder why they made google and who they really are. So, you end up learning more.
I don’t think I answered the question…