NPRWorld

Chef Jim Thomlinson is serving the burger, made of minced pork, minced veal and bone marrow, with bacon ketchup on a sesame brioche bun. Chris Coulson/Flickr hide caption

Two container ships collide in the Suez Canal on Monday. YouTube hide caption

Images from August 2000 (left) and August 2014 (right) show the drop in water levels in the Aral Sea. NASA hide caption

Boys show off their four-legged friends at a rabies vaccination drive set up by the Serengeti Health Initiative in the Bariadi District of Tanzania. Anna Czupryna/Courtesy of Serengeti Health Initiative hide caption

Afghan National Security Adviser Mohammad Hanif Atmar (right) and U.S. Ambassador to Afghanistan James Cunningham exchange documents after signing the Bilateral Security Agreement, with Afghan President Ashraf Ghani (rear, left) and Chief Executive Abdullah Abdullah in the background. Jawad Jalali/EPA/Landov hide caption

Security personnel guard the entrance of a road leading to a trail on Mount Ontake in Nagano prefecture Tuesday, three days after the volcano erupted in central Japan. Jiji Press/AFP/Getty Images hide caption

University of California President Janet Napolitano. Mandel Ngan/AFP/Getty Images hide caption

Pro-democracy activists sleep, rest and walk on a street near the government headquarters Tuesday in Hong Kong. Students and activists, many of whom have been camped out since late Friday, spent a peaceful night singing as they blocked streets in Hong Kong in an unprecedented show of civil disobedience to push demands for genuine democratic reforms. Wong Maye-E/AP hide caption