Sep 14 Arctic Ice Melting at Growing Rate, NASA Finds By PBS News Hour NASA-funded studies conducted last year found that sea ice present year-round in the Arctic is melting at a rate of 9 percent per decade, and in two recent summers, the ice was at record lows. Continue reading
Sep 11 Shuttle Atlantis Docks with Space Station to Attach Solar Panels By PBS News Hour The space shuttle Atlantis docked with the International Space Station Monday in preparation for attaching a 45-foot truss with new solar arrays to the orbiting research facility. Continue reading
Sep 07 Watch Genetic Map of Certain Cancers Discovered; Cancer Rate Drops Medical researchers have created the first genetic map of colon and breast cancer, revealing that nearly 200 mutated genes that were previously unknown help tumors grow and spread. Meanwhile, breast cancer rates in the United States have started to fall. Continue watching
Sep 07 Watch BP Officials Testify on Pipeline Leakage British Petroleum in Alaska officials fielded questions at a House hearing on the factors that forced them to shut down pipelines at Prudhoe Bay and what caused a large-scale spill. Continue watching
Sep 01 Lockheed Wins Contract for NASA Exploration Spacecraft By PBS News Hour NASA has awarded a multibillion dollar contract to Lockheed Martin to build a manned spacecraft to replace the retiring space shuttle fleet and ferry astronauts to the moon and possibly Mars. Continue reading
Aug 31 Watch California Moves to Be First State to Limit Greenhouse Gases California Gov. Arnold Schwarzenegger and Democratic lawmakers reached a landmark agreement on a bill requiring companies to cut output of greenhouse gases by 25 percent by 2020. Experts discuss the national implications of California's move to curb emissions. Continue watching
Aug 24 Watch Scientists Reclassify Pluto as ‘Dwarf Planet’ Top international astronomers voted Thursday to strip Pluto's planetary status that it has held since its discovery in 1930. The celestial object is now redefined as a "dwarf planet," leaving just eight major planets in the solar system. Continue watching
Aug 24 Watch Embryonic Stem Cell Development Raises Ethical Concerns Scientists have announced a new method of extracting stem cells from embryos, but it has done little to quell ethical concerns about the research. Two experts debate the ramifications of the new procedure. Continue watching
Aug 24 Pluto Demoted to ‘Dwarf Planet’ Status By PBS News Hour After years of debate over Pluto's planetary status, the International Astronomical Union voted Thursday to classify the celestial object as a "dwarf planet," thereby shrinking the number of major planets in the solar system to eight. Continue reading
Aug 17 Watch New Identification Technology Raises Concerns over Privacy New radio frequency identification, or RFID, technology uses hidden tags to track nearly everything from merchandise to hospital patients but civil libertarians are worried that this technology may be misused and people's privacy violated. Continue watching