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mfb- t1_ixhj2pn wrote

  • Atmospheric loss on Mars has a timescale of 100 million years or more. It's not a concern for a society that has the tools to give it an atmosphere over a reasonable timescale.
  • A magnetosphere reduces some losses but increases others. It's not critical for an atmosphere. See Venus, no global magnetic field and a very thick atmosphere. Mars doesn't hold an atmosphere over billions of years simply because it's too small.

See this comment for more details and references.

/u/Meta_or_Whatever I wish fewer people would parrot this misconception.


dakd2 t1_iy1c9iu wrote

I guess nobody knows the reason why there is increase of magnetic field strengh on earth when there is stormy weather in space