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astronomy
celestial bodies
Denotes any mass of natural matter of a certain size, located in space.
solar system
, Sun
, Moon
, galaxy
, planets and satellites
, meteorite
, comet
, star
astronomical observation
Observation of phenomena occurring in the celestial sphere.
refracting telescope
, reflecting telescope
, astronomical observatory
, planetarium
, celestial coordinate system
, radio telescope
, Hubble space telescope
astronautics
Science of navigation in space and all of its related human activities.
space probe
, space shuttle
, space launcher
, spacesuit
, international space station