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They mention a lot of options like transporting hydrocarbons from Titan or Ammonia from the outer solar system (as methods for atmosphere formation). Clearly t
by adventureful 14y ago
They mention a lot of options like transporting hydrocarbons from Titan or Ammonia from the outer solar system (as methods for atmosphere formation).
Clearly the best source of CO2 is to export it from Earth. A space railway from Earth to Mars for shipping CO2 would be at least as practical as any of the other options.
- rmckayfleming 14y agoVenus has an over abundance of CO2.
- deleted 14y ago[deleted]
- DavidSJ 14y agoThe delta V requirements to go from the outer solar system to Mars are far less than those required to go from Earth to Mars. Plus, an ammonia iceteroid can be moved around virtually for free (with significant mass lost upon arrival) since ammonia can serve as rocket fuel, and thus the iceteroid can act as a giant fuel tank.
- ranman 14y agoExcellent idea. However since mars is right next to the asteroid belt one might easily just use those rather than the "outer" solar system.
- ranman 14y agoA space railway from Earth to Mars is dreaming. 100 million miles is not a trivial task. Terraforming mars is a waste of time and this is all nonsense from Robert Zubrin. There are more profitable and, more importantly, more worthwhile endeavors outside of our solar system seeking other worlds. You can't fix Mars' 30% gravity and you can't fix the lack of a magnetosphere (unless you make the atmosphere so incredibly thick that it is impossible to live there).