Tybee Island, Ga., site of an annual sand arts festival, is a popular tourist destination. Local officials worry about a federal proposal to open areas off the coast to oil and gas development. Stephen Morton/Savannah College of Art and Design/AP hide caption

New research suggests that Saturn's tiny moon Enceladus has warm oceans hiding beneath its icy crust. NASA/JPL/Space Science Institute hide caption

Anna Julia Cooper was the fourth African-American woman in the U.S. to earn a doctoral degree. Scurlock Studios/Smithsonian hide caption

Girls carrying school bags provided by UNICEF walk past destroyed buildings on their way home from school on March 7 in the rebel-held al-Shaar neighborhood of Aleppo, Syria. So many people have fled the city and so much of its infrastructure has been destroyed that nighttime satellite images show 97 percent less light there compared with four years ago. Zein al-Rifai/AFP/Getty Images hide caption

A worker shovels muck out of a home in Longport, N.J., after Superstorm Sandy in 2012. Federal regulators say homeowners will be able to challenge insurance payouts they believe shortchanged them. Patrick Semansky/AP hide caption

Ella Barnes-Williams visits the thrift shop associated with Martha's Table, a nonprofit social services organization in Washington, D.C. Anders Kelto/NPR hide caption