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Astronomy-astronaut-astronomical
Astro: star-astrology占星学
Infinite: limitless, measureless, never-ending, spaceless, boundless, unlimited, endless
Universe-Galaxy(Milky Way)-Solar System:
Planet: Mercury-Venus-Earth-Mars-Jupiter-Saturn-Uranus-Neptune-(Pluto:dwarf planet)
Star: Sun
Moon:infinite
A man-made satellite is in orbit around the earth.
After the Second World War, the whole world used to be under the Soviet orbit.
