The news media yesterday had a fascinating story about a twin experiment involving astronaut Scott Kelly and his identical twin Mark. The results of the effects on Scott have recently been published in the journal Science. Most changes to his genetics have reversed since returning to earth after almost a year in space, but some changes have not. There has been worsening in some of the cognitive testing. The findings are concerning given that a human trip to Mars is likely to be attempted in the next few decades.
If you want to learn more detail, Christopher Mason* gave this fabulous lecture on this topic at the Allen Institute:
Click here to watch Mason’s presentation.
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