Has the earth ever been visited by intelligent extraterrestrial lifeforms?
You been watching ancient aliens again?
Damn show is on all the time. So Addicting.
No. Life is rare. Intelligent life is even rarer, and is wiped out in the universe equivalent of a second.
Well London certainly has been... ;)
My grandfather was stationed at Roswell, NM during the late 40s-early 50s. He's told me a couple stories about what the gov't found...
Yes?... Always makes me wonder, considering the leap from prop planes to jets in such a short span... But some argue that was what was seen.
I shouldn't say too much but aliens are real and we have recovered technology. Fairly primitive from what was reverse engineered but effective... Mostly stealth/low observability and hypersonic propulsion.