I don't know of any scientists who talk of extraterrestrials here on Earth. There's no proof of it.
God does not do everything in the universe. That's part of what "free will" means.
Individuals may stray from traditional beliefs, but the world does not.
And some "traditional" beliefs perhaps should be strayed from. Some "traditional" beliefs are not of God, but of man's "interpretation" of God's word. His word is good, but the interpretation is not. And some people feel they are not interpreting, but they are. For instance, the Fundamentalist who feels that the universe is only 6000 years old, because that is their interpretation of the Bible.
But there are many interpretations of the Bible. Which one, if any, is right? Only with humility can we find the answers from God.
I have found in my own interpretation of Genesis a timeline compatible with those of science. And that timeline has revealed many new answers, such as the identity of the "daughters of man" found in Genesis 6, and an understanding of the seemingly outrageous ages of the early patriarchs.