Sev

@Ssaev

Space, signal processing & Planetarium fan; working & tweeting part time @PlanetariumJena Beside this: @BEXUS_ARCA #ILAtweetup & #scienceTweetup attendee.

Da ist se wieder die Venus. #Venustransit

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899 days ago

Da ist se wieder die Venus. #Venustransit

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