英文關鍵字
astronomical
astronomy
background
constellation
cosmic
cosmos
deep
exploration
explore
fiction
field
final
flight
fly
frontier
galactic
galaxy
glitter
glow
glowing
hyperspace
illuminated
infinite
nebula
outer
sci
science
space
star
starburst
starcloud
stardust
starfield
starlight
stars
through
travel
traveling
universe