35 years after Roe v. Wade, the right to choose is still a volatile political issue in the presidential campaign. Republicans continue to emphasize the issue since it appeals to their voter base, particularly with the selection of Sarah Palin, who is against abortion even in cases of rape and incest. Watch story. (Originally aired: 9/12/2008).

Three separate teams overcome a biomedical hurdle — creating stem cells without the use of human embryos. Download a video (88.18 MB) about this scientific feat from NOVA ScienceNow.

Ireland’s verdant fields are not the nation’s only extraordinary natural features. Sculpted millions of years ago by the advance and retreat of vast shields of ice, the Emerald Isle harbors a wealth of wildlife among its craggy mountains, fog-shrouded coastlines, steep gorges, and vast networks of inland waterways. Watch now…

The documentary “Where We Stand: America’s Schools in the 21st Century” consists of five reports about the challenges and successes of education in America through the stories of real schools, teachers, parents, students and administrators. NewsHour’s Judy Woodruff hosts. Watch now.

Psychologist and Democratic political consultant Drew Westen, the author of “The Political Brain,” talks to NOW’s David Brancaccio about how appealing to voters’ emotions reaps bigger electoral rewards than hammering …