Cheating DNA Death: How an Extremophile Repairs Shattered Chromosomes. That is the title of an article up at Scientific American right now, about a microbe that can piece together its DNA after it has been fragmented by doses of radiation as much as 500 times what a human can withstand. There is a proper report at Nature but I cannot read that one without paying, so I will just have to let the ideas from that news blurb bubble about on their own.