Mar 23 Mars Rover Spies Evidence of What Was Once Pool of Water NASA scientists announced Tuesday that they believe the Mars rover Opportunity has found what used to be a briny pool of standing water at least 2 inches deep. Continue reading
Mar 19 New Fish Guidelines Issued, Prompted by Mercury Concerns Worries that the mercury in certain fish could harm young children prompted the government Friday to issue new guidelines for eating fish. Continue reading
Mar 02 Watch Water On Mars NASA announced Tuesday the discovery of evidence that water once existed on the surface of Mars, creating conditions that may have supported life. NASA scientist Jim Garvin explains the findings and implications. Continue watching
Feb 19 Watch Red Rovers The Spirit rover drove into a Martian hollow, while halfway around the planet, its twin dug a trench with one wheel to investigate the soil's content. Ray Suarez discusses the latest findings with Steve Squyres of Cornell University, principle investigator… Continue watching
Feb 16 Watch Stimulating Science Dr. Elias Zerhouni, director of the N.I.H., is spearheading efforts to speed up the time it takes for laboratory discoveries to be translated into new medical treatments and drugs. Susan Dentzer talks to Zerhouni and other researchers about the proposed… Continue watching
Feb 12 Scientists Cull Stem Cells From Cloned Human Embryo By PBS News Hour Researchers in South Korea succeeded in extracting stem cells from a cloned human embryo. Continue reading
Feb 09 Recovered Rover Drills Into Martian Rock NASA's robotic rover, fully recovered from computer problems that plagued it for more than two weeks, drilled into a Martian rock over the weekend in search of evidence that water once flowed on the arid planet. Continue reading
Jan 26 Second NASA Rover Lands on Mars; Spirit Prognosis Improves NASA celebrated the successful landing of its second rover, Opportunity, Saturday night on the opposite side of Mars from its twin rover, Spirit. Continue reading
Jan 26 Watch Rovers on Mars The NASA rover Opportunity landed in a shallow crater on Mars over the weekend and transmitted back images of a smooth red surface punctured with bedrock outcroppings. Ray Suarez discusses the mission and its findings with Orlando Figueroa, director of… Continue watching
Jan 23 European Orbiter Confirms Ice in Mars Polar Cap Europe's Mars orbiter has found the most direct evidence yet of water in the form of ice in the south polar cap of Mars, the European Space Agency announced Friday. Continue reading