Have You Ever Seen A UFO?

I've always thought... Whether we're alone in this universe, or if there are aliens out there, either way is totally remarkable. The Pentagon has released official video of UFO's. Unidentified flying objects, so not necessarily proof of alien existence, but what if? Have you ever seen something strange?

I've always thought space was just too big and you'd need to have the ability to travel at the speed of light for long periods of time to go any distance, but what if on some other planet, some aliens are far most advanced and have that technology? Would they come and invade? Investigate from afar? How do they ALWAYS seem to go unnoticed?

And better yet, do you know anyone who truly believes they've seen something like this? My parents are all in all the alien thing and I think it's a cool thought, I've just never seen or heard enough to believe.