List of unsolved problems in astronomy 1970-01-01
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Lunar swirls 1970-01-01
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Mass in general relativity 1970-01-01
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Modified Newtonian dynamics 1970-01-01
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O'Connell effect 1970-01-01
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Odd radio circle 1970-01-01
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Olbers's paradox 1970-01-01
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Photon underproduction crisis 1970-01-01
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Przybylski's Star 1970-01-01
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SCP 06F6 1970-01-01
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Stellar corona 1970-01-01
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Stephen Webb (scientist) 1970-01-01
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Strangelet 1970-01-01
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Tabby's Star 1970-01-01
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Transient lunar phenomenon 1970-01-01
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Ultra-high-energy cosmic ray 1970-01-01
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Unidentified infrared emission 1970-01-01
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VVV-WIT-07 1970-01-01
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Wow! signal 1970-01-01
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