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Elon Musk says building the first sustainable city on Mars will take 1.000 Starships and 20 years
Musk's stated launch cost of only around $2 million per Starship flight is essentially required, should the final goal be to set up a "self-sustaining city on Mars"
India has a new planetary target in mind: Venus
In addition to mapping the surface itself, looking a bit deeper into the planet should help scientists identify volcanic hotspots scattered across Venus