interstellar medium
molecular cloud
stellar nursery
nebula
cosmic dust
interplanetary medium
exosystem
intersidereal
elephant trunk
exozodiacal
contact binary
interplanetary space
protostar
astrochemistry
astrosphere
Trojan planet
Lich
shell star
rogue planet
Herbig-Haro object
space exploration
interstellar space
panstellar
space reddening
Deimos
Bok globule
starburst
double pulsar
electrosphere
warm ionized medium
interbinary
planet
stars
interstellar polarization
interstellar extinction
warm-hot intergalactic medium
Phobos
astration
carbon-nitrogen-oxygen cycle
prestellar
asteroid belt
protoplanetary disk
supercloud
supercivilization
binary pulsar
constellation
astromolecule
coma
helium flash
space rocket