NASA may have retired its shuttles, but it has its sights on sending astronauts deeper into space than ever before.

These voyages are years away, but on Monday, astronauts are heading underwater to take part in a simulation that will help them figure out how they might explore one possible new destination: a near-Earth asteroid.

Southeast of Macon, Ga., near Oglethorpe, rows of peanuts planted six weeks ago have sprouted. Tiny yellow flowers dot the rich-green plants. Donald Chase, his father and grandfather have owned this farm since the 1950s.

Like many southern farmers, Chase objects to the version of the farm bill kicking around in the Senate this week. The bill aims to do away with direct payments to farmers by expanding crop insurance programs.

The Justice Department has launched an investigation to determine the source of a series of leaks about sensitive intelligence matters. President Obama denied his administration authorized the leaks, but some Senate Republicans accused the White House of deliberately leaking the stories in order to boost the president's national security credentials.

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GUY RAZ, HOST:

It's WEEKENDS on ALL THINGS CONSIDERED from NPR News. I'm Guy Raz.

Support for Syria's president, Bashar al-Assad, may be further deteriorating. That's after Russia's foreign minister, Sergey Lavrov, said his country would be glad to see Assad step down if most Syrians agreed. Russia's been one of the Syrian regime's staunchest supporters.

In Syria itself, another night of gunfire and explosions, some of it in the capital, Damascus. NPR's Deborah Amos is there and with me now.

On Jan. 1, trillions of dollars in spending cuts and tax increases — called Taxmageddon — will take effect unless Congress and the White House can agree on a new plan. Many economists say the country will fall back into a recession if it happens. Former Treasury Secretary Robert Rubin says Congress may actually be "forced to make a decision that affects taxes and spending."