英文關鍵字
abstract
astronomy
astrophysics
backdrop
background
black
blue
connect
connection
cosmic
curved
dark
energy
fast
fiction
flying
funnel
future
futuristic
galaxy
hole
hyperspace
illustration
interstellar
light
motion
outer
portal
quantum
sci
science
shortcut
space
speed
super
time
travel
tunnel
universe
vortex
warp
worm
wormhole