Democratic Sen. Kirsten Gillibrand of New York is introducing legislation with other lawmakers Thursday that would change how the military handles sexual assault cases. The proposal would let military prosecutors — rather than commanders — decide whether to bring serious military crimes to trial.

It's the latest high-publicity move for a senator who was virtually unknown four years ago when she was appointed to fill Hillary Clinton's senate seat. Now, she's on some lists for possible candidates for vice president — even president.

On a sunny spring day in eastern Afghanistan's Paktia province, Afghan officials and U.S. troops and civilians gather inside the ancient mud fort in the center of Forward Operating Base Gardez. They're attending a ceremony marking the formal end of the work of the provincial reconstruction team, or PRT.

Scientists have discovered water that has been trapped in rock for more than a billion years. The water might contain microbes that evolved independently from the surface world, and it's a finding that gives new hope to the search for life on other planets.

The water samples came from holes drilled by gold miners near the small town of Timmins, Ontario, about 350 miles north of Toronto. Deep in the Canadian bedrock, miners drill holes and collect samples. Sometimes they hit pay dirt; sometimes they hit water, which seeps out from tiny crevices in the rock.