[LibertyRocks]

Presumably any alien-originated UFO would need to have the same type of aerodynamics to permeate our atmosphere as well, wouldn’t it?

I was just saying that it was interesting... Heck, it wouldn’t surprise me if the Roswell crash was some kind of a military test craft if the truth was ever really known.

[EnigmaticAnomaly]

"Presumably any alien-originated UFO would need to have the same type of aerodynamics to permeate our atmosphere as well, wouldn’t it?"

Did you mean to say PENETRATE perhaps?