Mar 29 Watch Bush and the Environment A panel discusses President Bush's recent moves on global warming, carbon dioxide and arsenic. Continue watching
Mar 29 Watch Human Reproductive Cloning A Congressional hearing explores the possibility of human reproductive cloning. Health correspondent Susan Dentzer reports. Continue watching
Mar 28 Watch Global Warming in Monterey Bay, California A recent study suggests global warming is altering marine life in Monterey Bay. Spencer Michels reports. Continue watching
Mar 26 Watch New Beginnings Paleontologist Maeve Leakey talks with Ray Suarez about her recent discovery: a skull three and a half million years old that could provide clues to the ancestors of homo sapiens. Continue watching
Mar 23 Mir Splashes Down Without a Hitch The Russian space station Mir made a fiery return to Earth, crashing down in the South Pacific. Continue reading
Mar 23 Watch End of an Era The aging Russian space station Mir fell to earth as scheduled last night. Terence Smith reports. Continue watching
Mar 14 Watch Environmental Reversal Two experts discuss President Bush's reversal of a campaign pledge to regulate carbon dioxide emissions from power plants. Continue watching
Mar 06 Watch Heart Stents Examining new research on and uses for stents -- spring-like devices that keep heart patients' narrowing arteries open. Susan Dentzer reports. Continue watching
Mar 01 Watch Earthquake! Washington Governor Gary Locke details the latest on the Northwest quake that has caused an estimated billion dollars worth of damage. Continue watching
Feb 28 Watch The Seattle Earthquake A magnitude 6.8 earthquake shook the Pacific Northwest, rattling windows from Vancouver to Salt Lake City. Continue watching