Saw an interview with Neil deGrasse Tyson the other day and he pretty much debunked all possibility of any aliens ever being here or coming here. While he and other great scientific minds all agree it is highly likely there is other life in the universe they all agree aliens are like sausquatch, yeti, the Loch Ness monster and unicorns, there has never been any actual proof of their existence. If there was you wouldn't have to read about them in the National Inquirer. I highly recommend watching some of deGrasse Tyson's programs on PBS. He explains science in terms even dumbies like me can understand and he uses undeniable logic to shoot down the alien and UFO stories. Most of the UFO stories are so simple to explain that you just go "Duh, how did I not see that". When deGrasse Tyson gave the full story about the Air Force investigations I felt like a fool for believing they might be proof of something. We're never getting the whole story when someone says they have proof aliens exist.