Genesis is true and it actually matches very well to our understanding of the Big Bang. Gerald Schroeder, a physicist and devote Jewish scholar, has written several books that I found to be excellent reads related the Astrophysics as we understand it to Torah. He goes into the science of relativity and the Torah in detail showing the consistently.
You have to accept that whatever the real story is about the origin of the universe is going to sound “silly” to a degree.
But the most “silly” story of all is that we are just here by some random act.