unearthliness
xenoarchaeology
astrogeophysics
flying saucer
saucerian
substar
UFO
unidentified flying object
xenology
xenoanthropology
alienness
superearthly
xenomorph
xenonatomy
allotrious
alien abduction
astrophilosophy
xenomythology
xenoethics
alienans
extraterrestrialness
geotectonically
exogalactic
ayy
other
geoheliocentric
xenosociology
micrometeoroid
paleocontact hypothesis
contact
exoscience
ancient astronaut hypothesis
extraterrestriality
antipodean
antipodal
alienship
alienish
xenopsychology
first contact
Arecibo message
preplanetesimal
biogeoscience
Elohim
spacewards
spaceward
Rare Earth hypothesis