alt Hacker News> It explained how the Earth generates the magnetic field that protects the planet from cosmic radiation,
Our protection from cosmic radiation is mostly due to Earth's thick atmosphere, not its magnetic field.
Replies
nephihaha • yesterday at 5:15 PM
The magnetic field deflects particles from the Solar Wind, whereas the atmosphere blocks a lot of the radiation as I understand it.
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nobodyandproud • yesterday at 5:06 PM
I don’t see any problems with the quote.
Qem • yesterday at 5:23 PM
Without magnetic fields, the solar wind strips away atmospheres, like what happened to Mars.
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> Our protection from cosmic radiation is mostly due to Earth's thick atmosphere, not its magnetic field
Primary defense against cosmic radiation: magnetic field
Secondary defense: atmosphere
https://science.nasa.gov/science-research/earth-science/eart...