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With the help of grow lights and air exchange fans, NASA is growing lettuce on the International Space Station. The scheme could help keep food costs down — and keep astronauts happy tending plants.

In coal-producing Kentucky and West Virginia, Democrats can't put enough distance between themselves and the Obama administration.

President Obama is delivering the keynote address of his current trip to Europe in Poland. Earlier in the day, Obama is meeting with the president-elect of Ukraine, Petro Poroshenko.

The Environmental Protection Agency has announced strict new carbon emissions regulations. Washington state has the largest reduction target — about 72 percent overall.

Shinseki has resigned his post, President Obama says, hours after the embattled head of Veterans Affairs said he would work to fix "systemic" problems in the VA's health care network.

King Juan Carlos announced he would abdicate in favor of his son, sparking a fierce debate over whether he should be allowed to pass on the crown — or if the monarchy should be abolished altogether.

The controversy over the exchange of a U.S. soldier for five senior Taliban fighters at Guantanamo Bay could rival or even surpass Benghazi.

A married couple apparently killed two police officers and another woman in Las Vegas. The husband and wife, also killed in the shooting, appear to have held anti-government and anti-law enforcement views.

Ecuador's ambassador to Washington is hoping to turn a page in her country's stormy relationship with the U.S. But it's not easy once your government is branded as left-wing.

Africa is big business for China. Howard French, author of China's Second Continent, talks to Steve Inskeep about why some African countries are of particular interest to Chinese leaders.