xenotechnology
xenoengineering
eetee
xenophysics
xenoscience
extraterrestrialization
cosmogenous
extraterrene
alienesque
xenomorphology
other
bug-eyed monster
ayy
allotrious
xeno-
space invader
xenogeology
xenobacteriology
xenocytology
xenoarchitecture
space alien
alienly
exocommunication
xenobiology
little green man
ultratelluric
Bracewell probe
unidentified flying object
alienism
visitor
xenology
alien
xenochemistry
xenomicrobiology
ultramundane
extraplanetary
alienkind
flying saucer
UFO
extraterrestriality
xenoarchaeology
foreign
xenopaleontology
spacy
xenobiochemistry
extramundane
alienness
saucerian
alienage
xenomorph