Research News Smithsonian Unravels Color Photography Mystery October 31, 2007 • The Smithsonian is tackling one of the biggest mysteries in the history of photography — whether color photography was first invented by an American minister from Westkill, N.Y. His contemporaries called his work a fraud, but a new analysis suggests that the story is not that simple.
Space NASA Examines Tear in Space Station Solar Panel October 30, 2007 • Spacewalking astronauts at the international space station noticed a rip in a solar panel they were unfurling to provide much-needed power to the spacecraft.
Research News Academy Issues New ADHD Guidelines October 30, 2007 • The American Academy for Childhood and Adolescent Psychiatry has just issued new guidelines for the diagnosis and treatment of Attention Deficit Hyperactivity Disorder.
Research News Study Says AIDS in U.S. Earlier than Thought October 30, 2007 • On Tuesday, the National Academy of Sciences published a new analysis of the African origins of the AIDS virus. The study shows the virus was present in the United States almost a decade earlier than previously thought.
Research News The Science Behind Dreams and Nightmares October 30, 2007 • Sleep researchers estimate that nearly three quarters of our dream emotions are negative. But what do nightmares actually mean? Guests discuss the science behind nightmares and shed light onto the murky field of dream interpretation and analysis.
National Officials Search for Arson Clues in Calif. Fires October 30, 2007 • Of the dozens of fires that have swept across Southern California in October, investigators believe that two may have been set deliberately. Experts discuss the motivations of arsonists, and a fire investigator explains how he determines whether a fire has been deliberately set.
Southern California Wildfires Spark Zero: Where Did the California Fires Start? October 30, 2007 • As arson probes continue in southern California, one investigator wrestles with the search for the one person and one place where the 25,000-acre fire began.
Law Supreme Court Considers 'Valdez' Fine October 30, 2007 • The Supreme Court has agreed to hear Exxon-Mobil's appeal of the $2.5 billion judgment for the Valdez oil spill. The court is also hearing arguments this week on a child pornography case that hinges on First Amendment rights.
Profiles Food & Climate: A Complicated but Optimistic View October 30, 2007 • Some of the most advanced climate models show global warming hurting agricultural production in the world's poorest regions. But Cynthia Rosenzweig, a NASA scientist who's studied this question for 20 years, has faith that solutions are within reach.
Technology Non-Lethal Weapon Emits Invisible Rays of Pain October 29, 2007 • The Pentagon's research arm has come up with a weapon that can neutralize an individual — or a crowd — from a distance of more than 500 yards. It emits an invisible beam of high-energy radio frequency that causes a person to recoil and flee.
Adaptation Will a Warmer World Have Enough Food? October 29, 2007 • Your most direct link to global warming may be the food you eat. The bounty of your local grocery store depends on natural cycles of rain and heat in far-flung parts of the world. Now those cycles are shifting and the effects on agriculture may be profound.
Environment Clam Claims Title of Oldest Animal October 29, 2007 • Scientist found what may have been the oldest living animal ... a 405-year-old clam. Paul Butler, a research student at Bangor University in Wales, was on the boat when the clam was found.
Signs Scientists Study the Impact of Water on Climate October 29, 2007 • Water is the most important greenhouse gas. NASA scientists study the moist air over Costa Rica to learn more about the role of water in climate change.
Environment Southeast U.S. Parched by Continuing Drought October 29, 2007 • A drought has severely depleted water resources in the Southeast, and reservoir levels are so low that the governor of Georgia has declared a water supply emergency in the northern part of the state. Guests discuss the impact the drought has had on the region and how the crisis is being managed.
Research News Vibrations Shown to Build Bone, Reduce Fat October 29, 2007 • The stem cell in bone marrow can become muscle, bone or fat. A biomedical engineer believes he has found a way to accomplish making muscle and bone. It involves standing on a gently vibrating platform for 15 minutes a day.