So how come we cant see it?
Because it is in an interdimensional plane, accessible only through ones spirit dreams.
Well we can't see it but all these nutjob socialists are proof that UFO is there. I am sure more developed civilizations are dumping their mental patients here. We see proof of that every day. That explains the need for such a long UFO, it has to be that big to transport as many mental patients as we are getting.
“...as many mental patients as we are getting.”
And not only those that write the books - but the buyers as well!