Could We Protect Mars-Bound Astronauts With A Magnetic Bubble?

Could a synthetic magnetic bubble, like a mini-magnetosphere, protect a crewed mission to Mars from cosmic radiation, and would the energy cost be prohibitively high?
A NASA mission reveals how gases in Mars' upper atmosphere are stripped away by the sun's solar wind. Image credit: NASA's Scientific Visualization Studio and the MAVEN Science Team

A NASA mission reveals how gases in Mars' upper atmosphere are stripped away by the sun's solar wind. Image credit: NASA's Scientific Visualization Studio and the MAVEN Science Team

As much as some folks are keen on sending people to Mars as soon as possible, it’s become obvious that protecting any astronauts from an unsafe level of radiation...

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