mars colony

Some alternate space timelines try to be "realistic" and fit within expected economic and political limitations, being slightly more (or less) advanced in capabilities than OTL. Others push the boundaries of realism or outright break them altogether (as if an ASB intervened) to create...

Alright. So I had this thought for a couple days, what if the Soviet Union established a colony on Mars? The POD I think for this TL would be Korolev's survival and, instead of trying to beat the USA to the Moon, the Politburo is convinced (somehow) that landing on the Moon before the Americans...

So, my challenge here is rather simple, basically what it says on the tin. Here's the specific conditions: - POD in 1901 or later - I'm specifically looking at the total off-world population in 2018, and the number of nations with space colonies - Mäps give extra points, either of Earth or of...

With a PoD after 1900, how early could we get large-scale interplanetary spaceflight? Supposing people generally supported it, what sort of scientific discoveries and technological development are necessary for it to be technologically and economically doable? And how can we get that public...