@topic_space_level=c2 - Oxford Dictionary

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astrophysicsnoun
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aurora australisnoun
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aurora borealisnoun
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biospherenoun
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blast-offnoun
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boosternoun
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coronanoun
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cosmic dustnoun
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cosmic raysnoun
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countdownnoun
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crescentnoun
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dark matternoun
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dockverb
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extraterrestrialnoun
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extraterrestrialadjective
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falling starnoun
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flying saucernoun
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hyperspacenoun
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intergalacticadjective
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interplanetaryadjective
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interstellaradjective
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lift-offnoun
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light yearnoun
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magnetic stormnoun
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Martianadjective
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Martiannoun
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nebulanoun
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orbitaladjective
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ozone holenoun
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penumbranoun
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platenoun
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podnoun
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probenoun
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red dwarfnoun
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shooting starnoun
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solar yearnoun
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space probenoun
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space-timenoun
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sputniknoun
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the Northern Lightsnoun
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the Southern Crossnoun
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the Southern Lightsnoun
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the thermospherenoun
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the tropospherenoun
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the ionospherenoun
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the mesospherenoun
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the stratospherenoun
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stratosphericadjective
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sunraynoun
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sunupnoun
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twilightnoun
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waneverb
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waxverb
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white dwarfnoun
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wormholenoun
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zenithnoun
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