Countdown Clock Ticks Toward Curiosity Landing on Mars

The high-stakes trial between Apple Inc. and Samsung Electronics Co. geared up Monday as jury selection for the patent infringement case commenced in federal court in San Jose, Calif.

On July 8, NASA satellite imagery showed about 40 percent of Greenland's top ice layer intact. By July 12, only four days later, 97 percent of the ice had melted. Margaret Warner asks NASA's Thomas Wagner for scientific explanation of the massive thaw.

In a four-day period this July, the Greenland ice sheet melted at a faster rate than satellite data has ever recorded and at higher elevations than we've ever seen in our lifetimes.

Map showing the four day period this July that the Greenland ice sheet melted at a faster rate and at higher elevations than satellite data had ever recorded.

Known for being the first American woman in space, Sally Ride dedicated her life to inspiring young people to engage in science, using space travel as a means to an educational end, rather than her own personal thrill ride. Judy Woodruff talks with science correspondent Miles O'Brien about Ride and her legacy.

On the 17th anniversary of the loss of the Challenger space shuttle, Sally Ride had dinner at Miles O'Brien's home. She was one of the guests of honor celebrating the opening of a new Challenger Learning Center. Miles reflects on that dinner and Ride's contribution to science and space flight.

In 1987, Sally Ride retired from NASA to take a job a Stanford University, leaving America's space program "without a real hero" and "struggling to stay in orbit."

Miles O'Brien remembers Sally Ride, the first American woman in space, who died on Monday after a 17-month battle with pancreatic cancer. She was 61.

Reporter Sam Eaton from Marketplace looks at Vietnam, where conservation groups and fish farmers are working to meet health and environmental standards thatbig retailers increasingly demand.

Within the next three years, it is expected that nearly 65 million homes in the U.S. will have wireless smart meters. But some California environmentalists, liberals, Tea Party supporters and other activists are not enthused by this. At the heart of the debate is whether smart meters can cause illness. Spencer Michels reports.