NASA's Look at Health Concerns in Space Travel

Discussion in 'Science' started by WillReadmore, Jul 12, 2019.

  1. WillReadmore

    WillReadmore Well-Known Member

    Joined:
    Nov 21, 2013
    Messages:
    59,910
    Likes Received:
    16,452
    Trophy Points:
    113
    I'm sorry I'm missing your point.

    Obviously, I don't know all laws on this topic. But, it would be interesting if there were a radiation limit that NASA must follow but SpaceX doesn't have to follow.

    I think one radiation limit on NASA is that they can't cause more than a 3% increase in likelihood of cancer within the indiviual's lifetime. I don't know how they figure lifetime on that!?!

    OSHA says:
    https://www.osha.gov/SLTC/radiationionizing/introtoionizing/ionizinghandout.html
     
  2. WillReadmore

    WillReadmore Well-Known Member

    Joined:
    Nov 21, 2013
    Messages:
    59,910
    Likes Received:
    16,452
    Trophy Points:
    113
    That's definitely serious business.

    I'm thinking that a local magnetic field of enough power to defelct high energy radiation could screw up experiments, equipment, etc. It might even have direct health affects - not like nuke power plant exposure obviously.

    The incoming cosmic radiation is significant. When an astronaut closes his/her eyes, flashes of light will be seen due to bombardment of the retina.

    Protecting against that with magnets means some pretty darn powerful magnets.
     
    Gatewood likes this.
  3. tecoyah

    tecoyah Well-Known Member Past Donor

    Joined:
    May 15, 2008
    Messages:
    28,370
    Likes Received:
    9,297
    Trophy Points:
    113
    Gender:
    Male
    My point is that neither you or I, let alone anyone else knows what any non existent OSHA regulation will be put in place and it wont matter anyway because they will be there before whatever is decided on regardless.
     
  4. WillReadmore

    WillReadmore Well-Known Member

    Joined:
    Nov 21, 2013
    Messages:
    59,910
    Likes Received:
    16,452
    Trophy Points:
    113
    I think there already are OSHA regulations in place.
    One such regulation:

    https://www.osha.gov/laws-regs/regulations/standardnumber/1910/
     
  5. tecoyah

    tecoyah Well-Known Member Past Donor

    Joined:
    May 15, 2008
    Messages:
    28,370
    Likes Received:
    9,297
    Trophy Points:
    113
    Gender:
    Male
    Any company will obviously adhere to standing OSHA rules. That was not in question, there are no regulations for Cosmic radiation exposure however, as far as I can tell.
     
  6. Moi621

    Moi621 Well-Known Member Past Donor

    Joined:
    Jul 13, 2013
    Messages:
    19,294
    Likes Received:
    7,606
    Trophy Points:
    113
    Gender:
    Male
    https://www.livescience.com/65249-magnetic-space-shield-mars-mission.html
    College Students Hatch Nuclear-Powered Magnetic Plan to Protect Marsonauts from Solar Radiation

    DENVER — A group of undergrad students is developing a magnetic shield to defend interplanetary astronauts from the intense cosmic radiation between Earth and Mars.

    The students, from Drake University in Iowa, presented their project in the poster session Saturday (April 13) at the April meeting of the American Physical Society. Their MISSFIT (Magneto-Ionization Spacecraft Shield for Interplanetary Travel) design uses a powerful magnetic shield that, like Earth's magnetosphere, protects the planet from high-energy particles. The defense system also incorporates "passive" shielding to mimic the ionosphere — Earth's second layer of defense.
    . . . .


    :hmm:
    Great Minds Think Alike



    Support Magnetosphere Protection for Astronauts.
     
  7. FreshAir

    FreshAir Well-Known Member Past Donor

    Joined:
    Mar 2, 2012
    Messages:
    150,851
    Likes Received:
    63,177
    Trophy Points:
    113
    for many years they thought ketones were dangerous due to the way they were discovered, were just now discovering their benefits

     
    WillReadmore likes this.
  8. WillReadmore

    WillReadmore Well-Known Member

    Joined:
    Nov 21, 2013
    Messages:
    59,910
    Likes Received:
    16,452
    Trophy Points:
    113
    Yes - the youtube I posted has a design for spacecraft protection, too.

    In this thread I'm presenting one of the health factors that NASA sees as potentially delaying a human trip to mars.

    I haven't suggested that the general idea of forming a magnetosphere is impossible in the long run. It seems like the best technology direction for space vehicles, as other choices have significant problems.

    This is an issue for moon travel, too, obviously. Even just our sun, with it's far less energetic radiation, could fry astronauts in today's rockets. The only good part about the moon is that we can get there and back faster.
     
  9. Moonglow

    Moonglow Well-Known Member

    Joined:
    Nov 19, 2013
    Messages:
    20,754
    Likes Received:
    8,047
    Trophy Points:
    113
    Gender:
    Male
    Ionically differentiated to human polarization to see how fast the mutant surfaces?
     
  10. Moi621

    Moi621 Well-Known Member Past Donor

    Joined:
    Jul 13, 2013
    Messages:
    19,294
    Likes Received:
    7,606
    Trophy Points:
    113
    Gender:
    Male
    Probably more of stimulating an epigenome more favorable
    to low gravity situations rather than a real, mutie
    (snarf, gurgle gurgle).



    You might invoke the Pearl Chain effect.
    Or not.
     
  11. WillReadmore

    WillReadmore Well-Known Member

    Joined:
    Nov 21, 2013
    Messages:
    59,910
    Likes Received:
    16,452
    Trophy Points:
    113
    I posted the wrong link. My intent was to post this one:
    https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1096

    Which contains the following concerning ionizing radiation:
     
  12. Moonglow

    Moonglow Well-Known Member

    Joined:
    Nov 19, 2013
    Messages:
    20,754
    Likes Received:
    8,047
    Trophy Points:
    113
    Gender:
    Male
    One variable has been discovered extended periods in space changes DNA.
     
  13. Moi621

    Moi621 Well-Known Member Past Donor

    Joined:
    Jul 13, 2013
    Messages:
    19,294
    Likes Received:
    7,606
    Trophy Points:
    113
    Gender:
    Male

    With no attempt at a magnetosphere.
     
  14. tecoyah

    tecoyah Well-Known Member Past Donor

    Joined:
    May 15, 2008
    Messages:
    28,370
    Likes Received:
    9,297
    Trophy Points:
    113
    Gender:
    Male
  15. WillReadmore

    WillReadmore Well-Known Member

    Joined:
    Nov 21, 2013
    Messages:
    59,910
    Likes Received:
    16,452
    Trophy Points:
    113
    ??
    There are many groups working on electromagnetic protection against radiation both in space and on earth.

    NOBODY has written off this approach for space travel.

    Not every idea that is easy to describe and which has huge focus has produced technology that we can immediately use today.
     
  16. WillReadmore

    WillReadmore Well-Known Member

    Joined:
    Nov 21, 2013
    Messages:
    59,910
    Likes Received:
    16,452
    Trophy Points:
    113
    Really interesting. I hadn't seen that specific configuration before - it's not like the tube of coils surrounding a spacecraft like a prophylactic, for example.

    The shape of the one in this article seems similar to the shape of the wheel like structures used for maintaining artificial gravity that humans need. Maybe there will be synergy there - like a space station with two concentric circles, one for radiation protection, one for artificial gravity.

    I wonder what they mean when they say high temperature superconducting coils. Some of our satellites already need significant heat shielding and methods of dumping heat. And, our satellites will all be fully exposed to the sun, of course.
     
    tecoyah likes this.
  17. tecoyah

    tecoyah Well-Known Member Past Donor

    Joined:
    May 15, 2008
    Messages:
    28,370
    Likes Received:
    9,297
    Trophy Points:
    113
    Gender:
    Male


    This is more about energy than thermal regulation.
     
    WillReadmore likes this.
  18. tecoyah

    tecoyah Well-Known Member Past Donor

    Joined:
    May 15, 2008
    Messages:
    28,370
    Likes Received:
    9,297
    Trophy Points:
    113
    Gender:
    Male
  19. WillReadmore

    WillReadmore Well-Known Member

    Joined:
    Nov 21, 2013
    Messages:
    59,910
    Likes Received:
    16,452
    Trophy Points:
    113
  20. tecoyah

    tecoyah Well-Known Member Past Donor

    Joined:
    May 15, 2008
    Messages:
    28,370
    Likes Received:
    9,297
    Trophy Points:
    113
    Gender:
    Male
    It has been hypothetical for years and mostly still is...these results were interesting though. I am sure Both Glenn and JPL are messing around with it however.
     
    WillReadmore likes this.
  21. OldManOnFire

    OldManOnFire Well-Known Member

    Joined:
    Jul 2, 2008
    Messages:
    19,980
    Likes Received:
    1,177
    Trophy Points:
    113
    I wonder how human evolution is directly connected to Earth and all of it's properties...like gravity, chemistry, day/night, Earth's orbit, properties of the Sun, Earth's magnetic field, common diets, etc.? And to whatever degree this might be, what happens when humans are suddenly subjected/exposed to different parameters? Earthlings are relatively fragile beings, many not being able to handle excess heat, excess cold, higher elevations, atmospheric pressure changes, a bean and onion burrito, etc. so when they are eventually exposed to all the changes they might experience in space travel, it's easy for me to see there are going to be problems. And this is without mentioning psychological issues...
     
    WillReadmore and tecoyah like this.
  22. tecoyah

    tecoyah Well-Known Member Past Donor

    Joined:
    May 15, 2008
    Messages:
    28,370
    Likes Received:
    9,297
    Trophy Points:
    113
    Gender:
    Male
    EVERYTHING human is tied directly to Earth and its properties because it is what created us and sustains us. Being in ANY foreign environment will have adverse effects no matter what we do...its all a matter of time.
     
    OldManOnFire and WillReadmore like this.
  23. WillReadmore

    WillReadmore Well-Known Member

    Joined:
    Nov 21, 2013
    Messages:
    59,910
    Likes Received:
    16,452
    Trophy Points:
    113
    Absolutely.

    In the OP I just focused on radiation, as it's illegal to radiate our astronauts into cancer, etc. even with their consent, and we have ideas today, but no accepted solution. Today, space station astronauts stack all their stuff in a pile and hde inside the pile when there are bursts of radiation. And, they still have significant protection from Earth's magnetosphere. That won't work in space.

    The OP cites include other health concerns NASA has even just for the trips to get there.
     
    OldManOnFire likes this.

Share This Page