Our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms. –Ephesians 6:12
Kurt Koch, Occult ABC.
John Weldon and Clifford Wilson, Occult Shock and Psychic Forces.
Gary Bates, Alien Intrusion (book and DVD): the most thorough Christian response.
Erich von Däniken, Chariots of the Gods.
Unsolved Mysteries: UFOs (DVD set).
Unidentified (Christian movie, 2006).
WesleyGospel Ministries 
I saw an “alien” once while practising meditation. It was like a vision in my minds eye. Also, in the old style seances, ectoplasm would come out of the medium. I take that to be a demonic materialisation and it probably has some “biological” quality, as would bleeding statues etc. I have experienced the “apport” many times in the form of items in my house completely disappearing, sometimes re-appearing in different places.
I’ve experienced a lost cell phone apport in my pocket when I was a camp counselor. But that was a Holy Spirit apport I think. Yeah, I was thinking the alien “biologics” could definitely be something like ectoplasm.
Even if the biologics (as it was put) were somehow not there, in ectoplasm or other physical artifacts, it would still leave open the question of how the government can actually have spaceships the demons used. If they are actual ships that are intact, that is pretty weird. It reminds me of that old film The Flight of the Navigator.
Yeah – I always liked that movie. I’d have to say these would be in the apport or pagan artifact or pagan relic category…for a “New Age” as it were.