Jul 12 Watch Scientists Explore Physics of Baseball Feats A home run is one of the biggest crowd-pleasers in baseball. A physicist, physics teacher and pitching coach talk about the physics behind a home run, a 90-mile-per-hour fastball and other baseball feats. Continue watching
Jun 22 Polar Research on Earth Assists with Mars Study By PBS News Hour As scientists continue to explore the poles as part of the International Polar Year, hoping to better understand the Earth's most extreme environments, some researchers are looking for answers even farther off -- toward the north pole of Mars. Continue reading
Jun 21 Watch Wildlife Thrives in Southern Sudan, Surveys Reveal The first aerial wildlife survey of southern Sudan in 25 years revealed that the herds of migrating gazelles, antelopes and other animals have managed to survive the country's decades of civil war. The Wildlife Conservation Society's Michael Fay discusses the… Continue watching
Jun 21 Watch Oregon Global Warming Skeptic Finds Controversy Oregon state climatologist George Taylor does not believe that global warming is due to human activity. Now, Oregon Gov. Ted Kulongoski wants him to stop using the state climatologist title. NewsHour correspondent Lee Hochberg reports from Oregon and Washington on… Continue watching
Jun 19 Shuttle Undocks from Space Station After Construction, Computer Glitch By PBS News Hour The space shuttle Atlantis moved away from the International Space Station Tuesday after a nearly 10-day stay during which astronauts installed a truss and pair of solar arrays, and experienced a temporary computer meltdown. Continue reading
Jun 14 ‘Landmark’ Study Changes Long-held DNA Beliefs By PBS News Hour A four-year international study of the human genome has prompted scientists to rethink some of their most basic ideas about how DNA functions. Continue reading
Jun 07 Watch Scientists Convert Mouse Skin Cells to Stem Cells In new studies published by three independent teams of scientists, skin cells of mice were successfully converted into stem cells. Specialists explain what the findings mean for human stem cell research and the potential for bypassing the controversial use of… Continue watching
Jun 01 Watch Pet Food Scare Raises Questions About Food Safety The recent cases of tainted pet food have raised concerns about food consumed by humans. Agriculture companies are taking new precautions to sterilize food supplies, but some experts say more regulations are needed. Continue watching
May 31 Watch NASA Develops Plans for Moon-Mars Mission NASA has unveiled plans for crew and launch vehicles to return humans to the moon as the first steps toward building an outpost there and eventually traveling to Mars. NewsHour correspondent Tom Bearden takes a closer look at NASA's space… Continue watching
May 31 One of World’s Top E-mail ‘Spammers’ Arrested By PBS News Hour A Seattle man accused of being one of the world's top spammers through a business that generated millions of junk e-mails was arrested Wednesday following a 35-count federal grand jury indictment last week. Continue reading