To determine where life came from, that would depend on each person’s beliefs and even their religion. According to Christianity, Christians believe that life began when God made Adam and Eve from the dirt on the ground. Other religions have their own beliefs as to how people were created. I am sure that there are also people that believe that people came from outer space.
However, it is simply based on beliefs. Since the Earth was created over four billion years ago, we know that dinosaurs lived on Earth before humans. Therefore, humans didn’t always live on Earth after it was first created. Life could also mean microbial life and not human life. There may be other scientific evidence of when life came to Earth and it could possibly have come from outer space.
