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A comment on New study dramatically narrows the search for advanced life in the universe. Parent comment

Re:New study dramatically narrows the search for advanced li... by godson_drafty on Wednesday June 12, 2019 @10:59AM (#20165297)
* an iron core that produces a magnetic field surrounding the planet, which allows the atmosphere to remain in place, rather than being blasted off the planet by solar winds.
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Re:New study dramatically narrows the search for advanced li... by Mirioron on Wednesday June 12, 2019 @11:10AM (#20165384)
Not only that - the outer core is also molten to a large degree. Without it, we wouldn't get such a strong dynamo effect.
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Re:New study dramatically narrows the search for advanced li... by papito on Thursday June 13, 2019 @10:51AM (#20175431)
YES. A major one I forgot. This is the first thing I think about when I hear about colonizing Mars, which has no iron core to speak of.
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