Sam's Blog

Twenty-four hours is like three weeks!

Here’s an Important Question…

Posted by samgr on March 19, 2008

So here’s an important (but possibly dumb) question. How much radiation does melanin shield you from? What I’m getting at is this: let’s say a gamma ray burst hit the earth and wiped out a lot of our ozone layer. Would people with darker skin be better protected? Would humans all evolve to be black? Someone please answer this; I was wondering about it in the shower.

Also, let’s say we colonize (and maybe terraform) Mars. Since it has lower gravity and much more radiation, would Martians end up looking like Masai: really tall and really dark? Or is that a totally different kind of radiation than the kind melanin blocks?

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