Ok Silent it wasn't supposed to sound like that.
What I was trying to say is well for an example we can take the atom. No one has ever seen an atom but the came up with the figure of the atom and how it works by calculate and do test and then they've got a model that was maybe not entirely correct(don't know really) but it matched their tests etc.
That's what i mean, our knowledge about space is still small and i think that we are just in the beginning of our space exploration.
And that about playing Gods was just a joke wich i barely explaind here:
I think, anyway i just had to say that about play god )
I expressed myself bad there, my apologise.