What I know and can be supported because there is no evidence, is some silly creator did not do it.
I strongly suspect it cannot yet be proven exactly how it started but the science explanation is the most plausible. It could have come here on comets but entry heat would kill it.
It's hard for people to think the evolution of us from a single cell happened but it's not impossible. It's also not by chance we are where we are today. Evolution is a fact regardless of what a silly book says. So from that, something was bound to develop and here we are.
Our ancestry can be easily traced to common elements throughout the cosmos. That of course is evidence that stars at the edge of the universe were once a lot closer and the big bang, although very difficult for the believers and ignorant to understand, is the most likely.
The God thing is a non starter.