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NASA is building a 2-pound helicopter drone that would help guide the vehicle on the Red Planet's surface. That way, the rover wouldn't need to wander as much to find its way around.

A split-second decision can cost a team the game. On Thanksgiving Day in 1993, when the Miami Dolphins played the Dallas Cowboys, defensive tackle Leon Lett made a big mistake that still haunts him.

On any day, a food bank could end up with heaps of pasta sauce, but no pasta. To solve the problem, a network of food banks created a currency of fake money and embraced trade.

Coal is king in India. Some say there's little alternative. So how can this country, the world's third-largest polluter, provide energy and lift millions from poverty while trying to become "greener"?

Our panel is on vacation, but that doesn't mean there's no show: in October, our host chatted with The Daily Show's new host about comedy, diversity, decor, visiting South Africa, and lots more.

The pope arrives in the country on Friday. Commentators James Kassaga Arinaitwe and Viviane Rutabingwa give him a crash course in the country's issues.

Advance directives don't guarantee that a person's wishes for end-of-life care will always be honored. Some states let people use physician orders that override legal requirements to perform CPR.

If a concerned citizen has his way, there will be a Museum of Political Corruption in Albany, N.Y. "I tell people, quite frankly, I want to institutionalize corruption," Bruce Roter says.

Brazil's Environment Ministry announced that deforestation in the country has increased by 16 percent. A separate study warned that more than half the Amazon's tree species may be threatened.

TV critic David Bianculli shares his enthusiasm for two newly released DVD box sets: season one of Better Call Saul and a four-DVD set of the 1970s PBS variety show, The Great American Dream Machine.