SIDRAT: Some Idiosyncratic Diverse Ramblings About TARDIStimes Right back in the very beginning, Tenth Planet, the Cybermen explained how they evolved on Mondas in this way: BARCLAY: Mondas? But isn’t that one of the ancient names of Earth? KRAIL: Yes. Aeons ago the planets were twins, then we drifted away from you on a journey … Continue reading Cybermen, Emotions and Nightmare in Silver