Terry Gross

Comedian Aziz Ansari has appeared on HBO's Flight of the Conchords, ABC's Scrubs and MTV's Human Giant. Nowadays he stars opposite Amy Poehler on NBC's workplace comedy Parks and Recreation.

Yesterday Colin Firth received a Best Actor nomination for his starring role in A Single Man, the Tom Ford adaptation of Christopher Isherwood's 1964 novel. Today Firth talks to Terry Gross about playing professor George Falconer, a gay professor navigating Southern California in 1962.

In 1951, Henrietta Lacks died after a long battle with cervical cancer. Doctors cultured her cells without permission from her family. The story of those cells — known as HeLa cells, in Lacks' honor — and of the medical advances that came from them, is told in Rebecca Skloot's book, The Immortal Life of Henrietta Lacks.