People wonder and sometimes ask what if we were all actually descendants from Aliens.
While there is no real scientific evidence to suggest that aliens came here to propagate life on Earth, and even less likely that aliens could travel through Interstellar space, there is an argument for saying that we are all aliens!
It turns out that we are all made of Stardust generated from Supernova explosions generated a long time ago in outer space! Our sun is a second-generation sun and the planets that orbit our sun are made of coalesced dust that was excreted by the stars. You and I are made of nothing but Earth. From dust to dust. We are actually made of entirely alien components.
That’s as alien as you can get, and that’s as alien as you are going to get!