英文關鍵字
clouds
colonization
color
contemporary
earth
earthlings
exploration
flight
galaxy
human
international
iss
long
orbit
panels
people
planet
real
seti
ship
shot
shuttle
sky
solar
space
station
time
usa
英文關鍵字
clouds
colonization
color
contemporary
earth
earthlings
exploration
flight
galaxy
human
international
iss
long
orbit
panels
people
planet
real
seti
ship
shot
shuttle
sky
solar
space
station
time
usa