Do you think there will ever be a colony in Space or on on the Moon or Mars?
Sure. As for space stations, I think that they won’t be as big in the future as a lot of people think. Space is empty. It means that everything has to be brought to it which adds to the expense. However, space stations have the advantages of manufacturing in micro gravity and hard vacuum so I think that there will be some small ones. Luna has the cheapest form of Helium 3 (the most powerful natural fuel known to exist). It is so energy dense it would actually be worth while to mine the regolith for it. The next nearest source of He3 is Saturn and you would use a great deal of its possible energy trying to lift it out of Saturn’s gravity well However, Mars is far more likely to have a large population in the near future. Using magnetic sails or light sails, strategic metals that cost equal to or more than gold could be shipped back to Earth profitably. Deuterium (Hydrogen 2) is three times cheaper to mine on Mars than on Earth since it is more concentrated. Deuterium could be profitably
