There are different kind of scientists with different religions. Some only believe in what they see (materialism), some keep being doubtful. Some great physicians realize the probability of the existence of a superior intelligence (God ?) is significant.

Most science isn't as proven as you think. The two big theories, the Big Bang and Evolution, keep having to be majorly changed because they are poor predictors of new evidence. They have kept the same name but the details have changed majorly. Both theories avoid discussing the details of the initial beginning because it is contrary to science.

There are lots of things made up to support the theories because the evidence doesn't support the theories. For example, comets lose significant mass every time they approach the sun. If the Solar System is as old as assumed, there should be no comets left. They have now made up an Oort Cloud that is so far out in the Solar System that we can detect it and something supposedly happens regularly to knock comets out of the Oort Cloud and into the inner solar system. There is zero evidence of the existence. The only reason it is considered is because something like this has to exist if the Solar System is billions of years old. The Big Bang theory keeps getting more and more complicated and now supposedly the majority of mass and energy in the universe is dark matter and dark energy, two things that can't be sensed or measured in any way. There are so many rescuing devices used it is hard to keep track of them all.

Evolution has been changed because although there are lots of changes within a kind, there is no uncontested (by evolutionists) transitional life forms. Most of the proposed transitional life forms have been later proven to be frauds. The initial formation of life from nonlife is so far out of reach of scientists that most have now given up, but assume some other expert knows how it happened. The only somewhat plausible experiment, the Miller-Urey experiment, used conditions that have never been shown to exist on earth. They then had to instantly remove the compounds formed into an artificial trap or they would be immediately destroyed. They managed to make a tiny quantify of the simplest amino acids in one of their tries (but not all attempts). These amino acids were in a mix of other toxic to life compounds. The amino acids were also right and left handed while life only uses left handed organic compounds. Although they claimed they had proved that life could form on its own, they actually proved that it couldn't. For life you need DNA, RNA, and proteins. You need information. You need only left-handed components. You need all of this fully organized together in an environment that is conducive to life (unlike the environment they used to make those few simplest amino acids). It took a lot of smarts to get a tiny piece of what is needed for life. The more we learn about the cell; the more we realize how it couldn't happen by accident.