astrosphere
warm ionized medium
Herbig-Haro object
nebula
elephant trunk
molecular cloud
smoke
fume
gaseous nebula
diffuse nebula
protogalaxy
Bok globule
shell star
cosmic dust
interplanetary gas
blob
supercloud
air shower
planetary nebula
ring rain
atmosphere
plume
protoplanetary disk
supernova
meteor
superwind
interstellar medium
stellar nursery
outflow
epistellar
star
tail
intercloud
aerosol
snow line
derecho
firestorm
helmet streamer
solar nebula
contact binary
supershell
intracloud
symbiotic star
halogen
radio burst
enormous Lyman-alpha nebula
hot spot
thundercloud
cumulonimbus
jellyfish galaxy
frEGG
cumulonimbus cloud
eructation
megaflare
scintillation
big bang
rack
superbubble
coronal hole
interstellar extinction
protostar
cosmic ray
H II region
dead comet
protobulge
bolide
drake
coronal mass ejection
solar flare
intergalactic medium
firedragon
radiant
sungrazer
cosmoid
starfall
spicule
solar energetic particle
macroturbulence
nova
astrophysics
circumgalactic medium
radiosphere
meteoroid
Wolf-Rayet star
chromosphere
superemitter
firedrake
absorption nebula
interplanetary medium
starburst galaxy
solar wind
exozodiacal
quasar
duststorm
pyrocumulus
coma
quasi-stellar radio source