C'mon people, books on the subject, claims made by military personnel, and/or others.....personal testimony is one thing, concrete evidence an entirely different matter.

And please, the mushrooms on mars thing, I guess there's a plausibility there, but if you care to read the rest of the story, it appears, at this time, to be howgwash.

Lastly, asking me to prove my existence, in return for the opinion of web sleuth, is a waste of time.

Not in this for challenges, and counter challenges, not in it for character assassination, though some make it difficult, and I might digress from time to time.

I'm looking for concrete evidence.

As for now

THERE
IS
NONE