Jeffrey Kaye of KCET-Los Angeles reports on efforts to build environment-friendly buildings.
Dr. Julie Gerberding, director of the Centers for Disease Control and Prevention, discusses the accidental shipment of a deadly flu strain to laboratories worldwide, the effort to destroy the samples, and the need for future precautions.
On the 50th anniversary of the polio vaccine's approval, a new book celebrates vaccine creator Jonas Salk. Then, a microbiologist talks about the life and work of Dr. Maurice Hilleman, who developed vaccines for mumps, measles, chickenpox, pneumonia, meningitis and…
NASA is developing a new program to build mechanical robot astronauts called Robonauts, some of which may be used to repair the Hubble Space Telescope. Some scientists argue that robots are better explorers than people.
Thousands fled from low-lying areas in Indonesia Monday after an 8.7-magnitude earthquake hit off the coast of Sumatra Island. A geological expert talks about how the earthquake originated.
The Senate Wednesday voted 51-49 to defeat a measure that would have banned oil exploration in the Arctic National Wildlife Refuge in Alaska.
The Environmental Protection Agency released the first regulations that limit mercury emissions from coal-fired power plants Tuesday. Two energy experts debate the implications of the new "cap and trade" initiative which allows companies to trade pollution allowances.
By PBS NewsHour
A judge on Friday ordered three bloggers to reveal confidential sources in a lawsuit brought by Apple Computer Inc., ruling that they were not protected by the First Amendment because they published trade secrets.
By PBS NewsHour
President Bush announced Friday that he has picked career government employee Stephen Johnson, the acting head of the Environmental Protection Agency, to take on the position full-time.
Tennessee has tried to tackle the skyrocketing costs of Medicaid for more than a decade and now their program, TennCare, faces major financial problems. The following is an extended transcript of David Shepard, a Democratic state representative, discussing the effort…
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