Jul 07 Watch Obama Administration Plans to Expand Research Funding for Older Stem Cell Lines An Obama administration plan released Monday would expand federal funding of stem cell research to older lines of stem cells previously ineligible for such financing. Jeffrey Brown reports. Continue watching
Jun 02 Watch Stalagmites Provide Clues in Changing Rainfall Patterns ITN's Channel 4 news correspondent Tom Clarke reports on what scientists are learning from stalagmites about the rainfall and changing weather patterns in a remote region of southwest Poland. Continue watching
Apr 22 Watch Young Engineers Envision Cities Of The Future Correspondent Tom Bearden reports on a competition of young engineers designing eco-friendly urban centers of the future. Continue watching
Apr 17 Study: Writing About Values Boosts Grades, Shrinks Achievement Gap By PBS News Hour A short self-affirming writing exercise that took only about an hour of class time boosted struggling black junior high school students' grade point average by nearly half a point over two years, according to a new study. Continue reading
Mar 09 Watch Obama Policy Shift Reopens Debate on Stem Cell Research President Barack Obama moved Monday to lift funding limits on embryonic stem cell research. Experts weigh how the decision fits into the president's broader approach to science. Continue watching
Feb 13 Watch Darwin's 200th Birthday Celebrations Span the Globe People worldwide celebrated Charles Darwin, the "father of evolution's" 200th birthday this week, honoring his extraordinary impact on science and history. Analysts discuss the man, his legacy and the ongoing debates raging over his core theories. Continue watching
Feb 13 Love Is a Chemical Reaction, Scientists Find By PBS News Hour To poets, love might be a many-splendored thing. But in neuroscientist Larry Young's lab, love is biochemistry. Continue reading
Dec 30 Watch Students, Scientists Build Biological 'Machines' Student participants in the 2008 International Genetically Engineered Machine Competition crafted biological "machines," or living organisms, using original combinations of DNA and other organic material to help tackle environmental and health problems. Tom Bearden reports. Continue watching
Nov 27 In China, Scientists Discover Oldest Turtle Fossil Ever Found By PBS News Hour Which came first, the land turtle or the sea turtle? Scientists aren't sure, but a newly-discovered fossil of a 220-million-year-old turtle seems to tip the scale toward aquatic evolution, and may help explain how turtles evolved their shells. Continue reading
Oct 24 Watch Obama Visits Grandmother in Hawaii as Campaign Battle Continues Across U.S. While Michelle Obama filled in for the Senator as he visited his ill grandmother in Hawaii, Governor Palin and Senator McCain took their message to the battleground states. Judy Woodruff reports on the latest news from the campaign trail. Continue watching