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Earlier quoted context omitted.
I don't think the concern is about gravitational conditions once you're on Mars, but the long trip to and from Mars (18 months each way, best case with current technology). Edit: I was wrongly thinking 18mo each way when it's closer to 18mo-ish round trip. Sorry internet armchair soldiers.
Where are you reading this? It is seven months each way as per the following: https://www.mars-one.com/faq/mission-to-mars/how-long-does-i...
Based on the experience of cosmonauts who spent long periods of time on various Mir missions in the 1980s and 1990s, what is the long-term impact of staying in zero-gravity space for so long? If they lost bone mass, the walls of their hearts became thinner, and they received the equivalent of 10 chest X-rays daily over hundreds of days in space, are they experiencing debilitating effects 20 or 30 years later?
...And this is why Mars for colonists is still very much a turgid fantasy. We need to dream less, and commit more to the hard and expensive org of solving these problems. Step 1: stop stripping NASA down to bare metal. Here’s some possible insight into the impact of radiation on their brains: http://www.sciencemag.org/news/2015/05/space-radiation-may-d... this is in addition to bones, muscles, eyes, etc. Edit: the pr…
You are getting downvoted for your pessimistic and can't do attitude than anything else.
Based on the experience of cosmonauts who spent long periods of time on various Mir missions in the 1980s and 1990s, what is the long-term impact of staying in zero-gravity space for so long? If they lost bone mass, the walls of their hearts became thinner, and they received the equivalent of 10 chest X-rays daily over hundreds of days in space, are they experiencing debilitating effects 20 or 30 years later?
Given that lack of gravity seems to be a major risk factor for well-being I'm surprised a static structure like the ISS doesn't yet have a rotating centrifuge-like structure ala 2001: A Space Oddysey to at least ward off the effects during sleep and downtime
It should be noted that, in Mars' reduced gravity, it can be presumed the symptoms would be lessened. Still a major concern, however.
Actually, there's a second way: call Valery Polyakov.
https://en.wikipedia.org/wiki/Valeri_Polyakov
Or a whole bunch of other Mir veterans:
Based on the experience of cosmonauts who spent long periods of time on various Mir missions in the 1980s and 1990s, what is the long-term impact of staying in zero-gravity space for so long? If they lost bone mass, the walls of their hearts became thinner, and they received the equivalent of 10 chest X-rays daily over hundreds of days in space, are they experiencing debilitating effects 20 or 30 years later?
Given that lack of gravity seems to be a major risk factor for well-being I'm surprised a static structure like the ISS doesn't yet have a rotating centrifuge-like structure ala 2001: A Space Oddysey to at least ward off the effects during sleep and downtime
Earlier quoted context omitted.
Given that lack of gravity seems to be a major risk factor for well-being I'm surprised a static structure like the ISS doesn't yet have a rotating centrifuge-like structure ala 2001: A Space Oddysey to at least ward off the effects during sleep and downtime
Well they do have those tied-down-with-a-spring treadmills, but that only covers you for the duration of your workout. I don’t know anything about constructing things for use in a space station, but I can’t imagine creating such a rotating structure would be easy, cheap, or safe.. a problem with a structure rotating quickly in space could quickly cause major safety issues for the ISS I’d imagine.
Besides, that doesn’t really work for the other physiological effects of low gravity, like the heart and circulation issues mentioned in the article.
Earlier quoted context omitted.
Given that lack of gravity seems to be a major risk factor for well-being I'm surprised a static structure like the ISS doesn't yet have a rotating centrifuge-like structure ala 2001: A Space Oddysey to at least ward off the effects during sleep and downtime
One was planned, but it was cancelled due to budget overruns: https://en.m.wikipedia.org/wiki/Centrifuge_Accommodations_Mo...
The goal was to "Expose a variety of biological specimens that are less than 24.5 in (0.62 m) tall"
Based on the experience of cosmonauts who spent long periods of time on various Mir missions in the 1980s and 1990s, what is the long-term impact of staying in zero-gravity space for so long? If they lost bone mass, the walls of their hearts became thinner, and they received the equivalent of 10 chest X-rays daily over hundreds of days in space, are they experiencing debilitating effects 20 or 30 years later?
I don't know the answer to your questions, but I did read in Chris Hadfields book that it takes basically the same amount of time you are in space to recover afterwards on the ground. If you're up for 6 months, you'll need about 6 months recovery.