Mar 31 Watch Researchers Examine Impact of Exercise on Aging Scientists have coined a new term -- geroscience -- to describe research that aims to slow down aging and delay the onset of age-related diseases like Alzheimer's and Parkinson's. Researchers are studying the underlying genetic causes of aging and effects… Continue watching
Mar 28 Watch After Major Cyclone, Bangladesh Worries About Climate Change Months after Cyclone Sidr killed 3,200 people along the Bangladesh coast, the devastated country turns its attention to climate change. Fred de Sam Lazaro reports on recovery efforts and worries about the long-term future of the country. Continue watching
Mar 28 Phone, Satellite Companies to Redevelop Airwaves for New Wireless Products By Admin, PBS News Hour Last week, the Federal Communications Commission finished auctioning off $19 billion worth of public airwaves after a federally mandated switch to digital television freed up large sections of the nation's wireless "spectrum."… Continue reading
Mar 26 Watch Ice Shelf Disintegrating Off Antarctica Peninsula A huge slab of ice has fallen off the western Antarctic peninsula, threatening the ice shelf behind it. Scientists say the collapse shows how quickly polar changes can occur amid certain climate conditions. A climatologist explains. Continue watching
Mar 26 U.S. Seeks AIDS Vaccine Research Overhaul By Admin, PBS News Hour The head of the federal government's AIDS vaccine research program said Tuesday that the focus should shift from large-scale human vaccine trials back to basic research. Continue reading
Mar 24 Watch Water Recycling Efforts Spark Policy Debate in California In water-strapped southern California local authorities are exploring new approaches to water usage, launching new programs that send highly treated wastewater back into the groundwater supply to serve as drinking water. Continue watching
Mar 24 Watch Digital Files Put Medical Records at Doctors’ Fingertips New technologies now allow doctors and hospitals to keep electronic health records, but the U.S. has been slow to switch formats. Susan Dentzer reports on the advantages and difficulties that some hospitals are facing in their efforts to digitize medical… Continue watching
Mar 21 Scientists Tie Chemical Reaction to Creation of Smog By PBS News Hour Just one week after the Bush administration announced its first new ozone standards in more than a decade, chemists have discovered that a chemical reaction in the atmosphere once thought to be insignificant may be a major contributor to smog. Continue reading
Mar 14 Pacific Island Fossils Reignite ‘Hobbit’ Species Debate By PBS News Hour Fossils of tiny humans found on the Pacific island of Palau have fanned the flames of contention over whether another skeleton, discovered several years ago on the nearby island Flores, represents a new species of human. Continue reading
Mar 07 Strange Malady Wreaks Havoc on Bat Population By PBS News Hour New Englanders may face an uptick in mosquito swarms, insect bites and moths this summer as a strange malady has threatened the insects' top predator: bats. Continue reading