By Jerome Groopman "Born in Belgrade, in what was then Yugoslavia, Maja Matarić originally wanted to study languages and art. After she and her mother moved to the United States, in 1981, her uncle, who had immigrated some years earlier, pressed her to concentrate on computers. As a graduate student...

By William Saletan | Slate "Is it OK to impregnate a 60-year-old woman? Should old women have babies? Until recently, this wasn't an issue. Nature exhausted your egg supply, and that was it. But technology has surmounted that problem. Now you can get in vitro fertilization, donor eggs, and womb...