So why do we fear death? And why can't we question science when the whole point of science is to question everything?
It seems both questions have the same answer - because we fear the unknown. The unknown can't be understood, and therefore can't be controlled to makes us feel better, and we fear what we don't understand for this reason. Our comfort zones are nothing compared to the unknown - comfort zones have boundaries; the unknown is unlimited.
We don't know what happens after death, so we can't control death, so we fear death because we feel powerless against it.
We don't like the idea of questioning science because there's always a possibility that the evidence it presents to us, no matter how objective it seeks to be in finding empirical evidence, could be wrong. And if there's a possibility that science is wrong... well, what is right? We're back in the unknown. And we can't control the unknown. So we fear the unknown.
This fear of the unknown is what also defines morality. We all have a story in our heads about how life should be - this is our comfort zone. When circumstances abide by this story, we call them "good", "right", "God", etc. However, when they don't abide by this story, we call them "bad", "wrong", "Satan", etc. Circumstances we call "wrong" and "evil" are labelled as such because emotionally, we don't know what to do about them. In essence, they are part of the unknown.
And because we live in a world that'll do almost anything to feel better, we either fight or flee from "evil" to this end.
Considering "evil" still exists, and is part of the unknown, how we doing?