Health And Human Performance Risks For Space Exploration - Page 1
Forum section: electronics / general

author: LabSpokane
author_rank: Super Contributor
timestamp: November 02, 2015, 04:43:58 am
content: https://oig.nasa.gov/audits/reports/FY16/IG-16-003.pdfThis is an interesting read. I could not imagine that NASA was seriously considering sending humans to Mars solely in the Orion capsule, but NASA's Inspector General says that is *exactly* what is being proposed.Three people to the moon in an Apollo size capsule, okay. Months long mission to an asteroid? Year plus mission to Mars in a beer can? No way.Quotehttps://www.nasa.gov/content/nasas-journey-to-marsQuote

author: HP-ILnerd
author_rank: Frequent Contributor
timestamp: November 02, 2015, 05:17:06 pm
content: This paper is just a lot of arm-waving in the wind:"Although NASA expects aspacecraft capable of transit to Mars will have less mass and volume than current vehicles, the vehicle’soverall parameters remain unknown. Accordingly, it is unclear how much mass, volume, or weight will beavailable to accommodate potential countermeasures such as developing methods to supply food to acrew for up to 5 years without resupply."Most mission designs at least have numbers worked out so you can analyze the possibilities based on a specific set of assumptions. This one just enumerates the general problems.Example of less arm-wavy:http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20140017461.pdfActual numbers and hardware assumptions. Perhaps NASA's OIG should refrain from writing papers in the future.

author: Tomorokoshi
author_rank: Super Contributor
timestamp: November 02, 2015, 05:36:25 pm
content: They should talk to the crews of Skylab.

author: rdl
author_rank: Super Contributor
timestamp: November 02, 2015, 05:39:07 pm
content: No need to worry, at the current rate of test flights for the Orion/SLS system there is not much chance of reaching Mars anytime soon.

author: Mechanical Menace
author_rank: Super Contributor
timestamp: November 02, 2015, 05:59:46 pm
content: Quote from: Tomorokoshi on November 02, 2015, 05:36:25 pmISS crews would be better, they spend 6 months per mission up there. The Mir crews would be an even better choice seeing as some spent over a year in orbit. Even with current rocky relations with Russia all sides seem much more prepared to play nice when it involves people in space.

author: SeanB
author_rank: Super Contributor
timestamp: November 02, 2015, 06:00:23 pm
content: Just how much space will a 5 year supply of MRE's for 3 take up? And add to that you will need a water recycler ( yesterdays coffee is todays coffee and tastes like it) and make up water for it. Would probably fill a standard 20TEU container with the food alone, and about 10 tons.

author: LabSpokane
author_rank: Super Contributor
timestamp: November 02, 2015, 06:28:19 pm
content: Quote from: HP-ILnerd on November 02, 2015, 05:17:06 pmThe OIG is correctly pointing out that artificial gravity and large habitation spaces are NOT part of the current plan. The use of a craft so tiny as Orion for long duration space flight is just ridiculous.

author: HP-ILnerd
author_rank: Frequent Contributor
timestamp: November 02, 2015, 07:13:07 pm
content: Quote from: LabSpokane on November 02, 2015, 06:28:19 pmNo argument there. For realism's sake, I don't cramp 'em up like that in Kerbal Space program, even though there are no consequences for doing so.If the current DRM is a lone Orion capsule, that's plain silly. The designs in the paper I linked to seem minimalist, but at least they're believable.

author: monksod
author_rank: Contributor
timestamp: November 03, 2015, 02:05:05 am
content: NASA should just go ask CIA if they can borrow one of their secret anti-gravity spaceships.