its very interesting stuff they discover...
i think, there is much more going on our neigbour planets, but i'm afraid they "can't" tell the whole truth.
according to the technology they found in germany after ww2, the possibility to get to mars existes for more than 70 years. (for us).
its hard for me to imagine, they were not there earlier if that is true..
hopefully we get more news soon about that
....
some years ago, i saw a documentary in tv about stealth technology.
they talked with a technician and he was like: "yea thats interesting stuff with the stealth thing, but on those technologys we research in our bunkers, starwars and stuff we can imagine is the PAST" .....
....the rest you can guess...