NOVA Science Video Podcast | PBS

In this excerpt from NOVA's "The Big Energy Gamble," California Governor Arnold Schwarzenegger, a.k.a. "The Governator," touts the possibilities for a green-technology revolution. Also, see how a company called Nanosolar is printing out state-of-the-art solar panels and what's powering Google. Watch NOVA every Wednesday night on PBS. Or join us online at pbs.org/nova. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers. To learn more, visit http://www.pbs.org/nova/energy

Will research into "longevity genes" help us live longer and healthier lives? NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers. This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

Bill Nye, TV's "Science Guy," conducts a pasta-making experiment that can save you money. Watch NOVA every Wednesday night on PBS. Or join us online at pbs.org/nova. Video podcast produced and edited by Melissa Salpietra. Original footage produced for NOVA by Larry Klein. Stock footage copyright istockphoto.com. Detailed credits available at pbs.org/nova/energy/credits.html. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers. To learn more, visit http://www.pbs.org/nova/energy

Once scorned for his ideas about how cancer grows, the late Judah Folkman is now hailed as a visionary. NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers. This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

A pair of mammoth skeletons is found locked together by their tusks. What happened? NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers. This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

NASA's latest robot has already found frozen water and is looking for more signs that the Red Planet could support life. NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers. This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

Is the weather on Mars anything like the weather on Earth? NOVA asked Vicky Hipkin from the Canadian Space Agency, who was part of the recent Phoenix Mission to explore conditions on the Red Planet. Watch NOVA every Wednesday night on PBS. Or join us online at pbs.org/nova. Video podcast produced and edited by Melissa Salpietra. Still images and footage courtesy NASA, JPL, Caltech, University of Arizona, Texas A and M University, Cornell University and istockphoto.com. Detailed credits available at pbs.org/nova/mars/credits.html. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers. To learn more, visit http://www.pbs.org/nova/mars

MIT physicist Daniel Kleppner explains how matter changes as it is reduced in temperature and nears -273 degrees F, or Absolute Zero. Watch NOVA every Wednesday night on PBS. Or join us online at pbs.org/nova. "Absolute Zero" is a production of Windfall Films Ltd. and Meridian Productions for TPT/Twin Cities Public Television and WGBH/NOVA in association with the BBC. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers. To learn more, visit http://www.pbs.org/nova/zero

Even so-called "mild" head injuries turn out to be anything but. NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers. This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

At the present-day excavation site at Jamestown, archeologists are uncovering evidence of intriguing, harmonious relationships between the native Powhatan people and the English colonists. Other evidence, hidden in tree rings, hints at why hostilities between the two cultures mounted. Watch NOVA every Wednesday night on PBS. Or join us online at pbs.org/nova. Original footage produced by Lone Wolf Documentary Group. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers. To learn more, visit http://www.pbs.org/nova/pocahontas

Three separate teams overcome a biomedical hurdle-creating stem cells without the use of human embryos. NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers. This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there? NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers. This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

A century after falling out of favor among doctors, medicinal leeches are back in hospitals, sucking away on patients' wounds. NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers. This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

In this excerpt from NOVA's "Ocean Animal Rescue," join biologist Daniel Costa and his team in the field as they study the surprising behavior of northern elephant seals. Watch NOVA every Wednesday night on PBS. Or join us online at pbs.org/nova. "Ocean Animal Rescue" is a NOVA Production produced by Hamilton Land & Cattle, Inc. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers. To learn more, visit http://www.pbs.org/nova/ocean911

Can we engineer bridges that tell us what's wrong with them before it's too late? NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers. This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.