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Radiation threat to Humans in Space

Posted by gang.li on May 2, 2016 at 4:05 PM


For astronauts to have a round trip to Mars, one has to worry about radiation exposures.  Solar Energetic particles and galactic cosmic rays are the most detrimental ones. The former is energetic particles accelerate at solar flares and/or CME-driven shock and the latter from presumably supernovae in our galaxy.  The following gives an overview of radiation hazards to humans in the Space.


Infographic: How Radiation in Space Threatens Human Exploration
Source SPACE.com: All about our solar system, outer space and exploration


How to shield these harmful particles?

Basically, there are two groups of ideas: 1) active protection (using magnetic or electrostatic fields to act as a shield) or 2) passive protection (relying on layered materials).

NASA has offered award money to this problem.

- The results?  See   http://www.space.com/29512-mars-mission-radiation-nasa-challenge.html#sthash.zyLNtCwY.dpuf





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