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 Children: Unsolved problems in astronomy

Possible dwarf planets  1970-01-01
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Sednoids  1970-01-01
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ASASSN-V J213939.3-702817.4  1970-01-01
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BLC1  1970-01-01
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Baldwin effect (astronomy)  1970-01-01
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Diffuse extragalactic background radiation  1970-01-01
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Diffuse interstellar bands  1970-01-01
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Disrupted planet  1970-01-01
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EPIC 204376071  1970-01-01
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Extraterrestrial life  1970-01-01
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Faint young Sun paradox  1970-01-01
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Fast blue optical transient  1970-01-01
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Fast radio burst  1970-01-01
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Fermi paradox  1970-01-01
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G-dwarf problem  1970-01-01
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Galactic Center GeV excess  1970-01-01
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Greisen–Zatsepin–Kuzmin limit  1970-01-01
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HD 139139  1970-01-01
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IPTF14hls  1970-01-01
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List of fast radio bursts  1970-01-01
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1 2 > Total articles: 39
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