Neuroscientist and philosopher Sam Harris describes a scenario that is both terrifying and likely to occur. It’s not, he says, a good combination.
A new technology that goes by the ungainly name of CRISPR-Cas9 could change the human genome for generations. Here’s why its inventor is trying to press pause.
In June, biologist Tony Wyss-Coray described “an absolutely amazing development in aging research.” The implications are huge–and troubling.