Voyager 1!!!! perhaps the aliens brought it back to Earth like in the 1960s or 70s(guess 70s if it's Voyager or even Pioneer?)Star Trek episode?! it's on a cycle way which uses a disused railway from Riccall to York and has a scale model of the solar system.Pluto in Riccall and the sun in York.to this scale,12km long,proxima Centauri would be in Jakarta, Indonesia,now that's big!

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