English for Students

albedo
Alpha Centauri
apogee
asteroid
astronaut
astronomer
astronomy

background radiation
binary star
black hole

cluster
comet
conjunction
constellation
corona
cosmonaut
crater

dark matter
day
dwarf planet

Earth
eclipse
ecliptic
escape velocity

flare

galaxy
geosynchronous
gibbous

hydrogen
helium
Hubble

ionosphere

Jupiter

Kepler
Kuiper

light-year
local group
lunar

magnitude
Mars
mass
Mercury
meteor
meteor shower
meteorite
meteoroid
Milky Way
moon

nadir
NASA
nebula
Neptune
neutron star
nova

observatory
Oort
opposition
orbit

parallax
parsec
penumbra
perigee
perihelion
perturbation
phase
planet
planetary nebula
planetoid
Pluto
pulsar

quasar

radiant
radiation
revolve
rocket

satellite
shooting star
solar
solar system
solar wind
solstice
space
space station
star
sun
sunspot
supernova

telemetry
telescope

umbra
Uranus

vacuum
Van Allen belt
Venus

zenith