[InterceptPoint]

So with all this gear in use, I'm wondering, why has no one captured clear and unambiguous evidence of UFOs from outer space?

You have answered your own question by the way you prefaced it. The simple answer is that the absence of those photos and videos is the proof that there are no alien invaders flying around in our skies.

[Quix]

WRONG.

BIG WRONG.

Though some would argue about whether from other dimension(s) vs outerspace.