Are we 'immigrants' in our own galaxy? Where do we come from? How exactly was our planet formed? Now thanks to a ground breaking study we have a better idea. http://www.fox5ny.com/news/276968334-story [Millions of hours with a super computer produces a new theory about how galaxies were formed after the big bang and where and how the building blocks of life came about.] ------------------------------ "libido sciendi"..... the passion to know.
While we, humans, evolved ON Earth, we were conceived by the biology OF the Earth. And Earth was born in space. So we humans and any other living organism evolved on this planet, are all 'immigrants of the universe'. We are all aliens in our "own" backyard. (Nice size, though!)
'We' didn't exist until conditions on Earth allowed us to evolve from the muck...so 'we' are not immigrants of the galaxy or Universe. Perhaps the building blocks of life as we know are the pesky migrants? The more important question might be legal or illegal immigrants?
