The flight from New Guinea to tiny Howland Island, a speck in the Pacific Ocean 2,227 miles away, was the most dangerous and difficult during Amelia Earhart and Frederick Noonan’s bid to fly around the world. It also proved to be their last. The pair disappeared en route on July 2, 1937. A coast guard ship lost contact with Earhart as she approached the island, very low on fuel. It’s assumed she ditched in the Pacific, though no trace of the aircraft has ever been found. A photo rediscovered in the National Archives a couple years ago may be an image of Earhart and Noonan held captive on a Pacific atoll, but it only added to the mystery surrounding Earhart’s fate. The Smithsonian has a great article about the search for clues to Earhart’s disappearance, here.