A look back at our year in images – highlights include @Thom_astro's #spacewalk , #SolarEclipse2017, results from @ESAGaia, @astro_paolo #Vitamission and so much more https://t.co/zvLyR7eFSB pic.twitter.com/Fpi1H4CCgV
— ESA (@esa) December 23, 2017
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