One of your pages has nothing at all linking to it, so finding a route to that link is impossible.

https://en.wikipedia.org/wiki/Special:WhatLinksHere/Sputnik-...

However, you can go the other way:

  Sputnik-1_EMC/EMI_lab_model
  
  Sputnik 1

  Soviet space program

  United Nations Committee on the Peaceful Uses of Outer Space

  United Nations

  Model United Nations

  Dwight Schrute

  Spud gun

Also I'm realizing after finding that that I could have used the site in this post...

Spud gun links to "Sputnik 1", so if anything it's just weird that "Sputnik-1 EMC/EMI lab model" doesn't appear to link to "Sputnik 1"

Well, rather, it DOES. Maybe the unencoded '/' in the URL (https://en.wikipedia.org/wiki/Sputnik-1_EMC/EMI_lab_model) breaks the 6 Degress of Wikipedia?

I think that's because nothing on wikipedia links to that page.

I managed to go from spud gun -> great depression -> dissolution of the soviet union -> soviet union -> sputnik, but I couldn't get the last step!