To this day, scientists still do not understand how life evolved from non-life. (”Is Atheism Dead?”, Eric Metaxas ... worthy of your most serious consideration)
If scientists want to know how life on Earth came about, they have only to read the Bible. Of course, they might want to not only read it, but believe it also. Short of doing this, I don’t see how they will ever come to know how life came to be on Earth.