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[PS] Liquid Water on Mars! Really for Real This Time (Probably)
On Jul/27/2018 at 6:37 AM, Jeff Findley wrote :
In article , says... Planetary Society Blog /////////////////////////////////////////// Liquid Water on Mars! Really for Real This Time (Probably) Posted: 25 Jul 2018 09:11 AM PDT http://www.planetary.org/blogs/emily...rs-really.html A radar instrument on one of the oldest operational Mars orbiters has discovered possible evidence of present-day liquid water on Mars. This is really big news. We really, really need to explore this area to determine how much water is there and how easy it is to get to. Water means air to breathe and rocket fuel (CO2 from the atmosphere plus H2O gives you liquid methane and liquid oxygen). Jeff I should add also that using Martian water for rocket fuel is the right thing to do at first. But once you have a well established colony you will want to keep water for the colony. The colonist will probably want their colony to grow. And they will want lots of water. The more water you have the easier it is to have an attractive colony. Some launch systems that are wacky and impractical here on Earth become feasible on Mars. For instance, if you have some kind of maglev rail on the slope of Olympus Mons, you have the advantage of near vacuum at the top and lower orbital/escape speeds. Alain Fournier |
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