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In recent months, the executive secretary of the National Space Council, Scott Pace, has worked assiduously behind the scenes to develop a formal space policy for the Trump administration. In a rare interview, published Monday in Scientific American, Pace elaborated on some of the policy decisions he has been helping to make.
In the interview, Pace explained why the Trump administration has chosen to focus on the Moon first for human exploration while relegating Mars to becoming a "horizon goal," effectively putting human missions to the Red Planet decades into the future. Mars was too ambitious, Pace said, and such a goal would have precluded meaningful involvement from the burgeoning US commercial sector as well as international partners. Specific plans for how NASA will return to the Moon should become more concrete within the next year, he added.
In response to a question about privately developed, heavy-lift boosters, the executive secretary also reiterated his skepticism that such "commercial" rockets developed by Blue Origin and SpaceX could compete with the government's Space Launch System rocket, which is likely to make its maiden flight in 2020. "Heavy-lift rockets are strategic national assets, like aircraft carriers," Pace said. "There are some people who have talked about buying heavy-lift as a service as opposed to owning and operating, in which case the government would, of course, have to continue to own the intellectual properties so it wasn't hostage to any one contractor. One could imagine this but, in general, building a heavy-lift rocket is no more 'commercial' than building an aircraft carrier with private contractors would be."
I thought flying non-reusable pork rockets was about the money, not strategy. SpaceX is set to launch Falcon Heavy for the first time no earlier than December 29. It will have over 90% of the low Earth orbit capacity as the initial version of the SLS (63.8 metric tons vs. 70).
Previously: Maiden Flight of the Space Launch System Delayed to 2019
First SLS Mission Will be Unmanned
Commercial Space Companies Want More Money From NASA
U.S. Air Force Will Eventually Launch Using SpaceX's Reused Rockets
(Score: 2) by dry on Thursday November 09 2017, @05:33AM
A couple of points,
My understanding is that the Moon is missing some vital elements needed for life and therefore colonies with no need for resupply are basically impossible. Looking quickly, I see that https://en.wikipedia.org/wiki/Geology_of_the_Moon#Elemental_composition [wikipedia.org] mentions that carbon and nitrogen are almost non-existant with only deposits from the solar wind. Be pretty hard to have a self supporting colony without carbon and nitrogen. Pretty sure there are other elements that we need that are in short supply on the Moon.
Don't forget the long nights, something like 330 hours of dark. Possibly the poles could be a workaround but the poles look very rugged. I'd assume that flat areas will be needed for space ports. The need for large fairly flat areas for landing multiple space craft will also be an issue with all colonies including on Mars. Those lava tubes may not be in the most accessible locations.