xenopaleontology
xenoscience
alien
xenobiology
xenophysics
xenology
cosmogenous
xenochemistry
extraterrene
aliensdidit
xeno-
xenogeology
extraterrestrialization
bug-eyed monster
exobiology
astrobiology
extraterrestriality
space biology
xenoengineering
ultratelluric
alien abduction
exogenesis
first contact
ultramundane
extraplanetary
xenotechnology
astrohistory
extramundane
xenohistory
alienesque
space alien
alienage
alienkind
exocommunication
xenomorphology
spacy
xenocytology
eetee
extraterrestrially
visitor
xenoarchitecture
xenobiochemistry
xenofiction
xenoethics
extraterrestrialness
xenomicrobiology
alienism
paleocontact hypothesis
ancient astronaut hypothesis
exopolitics
xenosociology
xenomythology
xenotheology
Elohim
xenoanthropology
little green man
ufologically
close encounter
xenoarchaeology
exoconsciousness
superearthly
Tall White
UFO religion
paleocontact
xenophilia
UFO
flying saucer
space invader
unidentified flying object
alienness
xenobacteriology
xenopsychology
bolide
Rare Earth hypothesis
Parcae
ancient astronaut
substar
earthborn
star visitor
alienly
semiextinction
ultraplanetary
meteoroid
spokesbeing
saucerian
osteobiography
micrometeoroid
near-death experience
meteor
spacesick
Raëlism
unearthliness
eternal life
allotrious
underworld
supercivilization
omniversal
Neoplatonist
apocalyptical