https://newsable.asianetnews.com/lifestyle/why-humans-in-mars-still-a-while-to-go-read-to-know-more-atg-eai-s01wis
Manned Mars missions are hindered by space radiation, underestimated in sci-fi. Current tech can't shield against solar flares and CMEs. Colonization goal by 2050 improbable without radiation protection breakthrough
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