The mystery surrounding aviator Amelia Earhart—who vanished while attempting to circumnavigate the globe in 1937—has intrigued people for decades. Recently, an ocean exploration company said it might have found a clue: Sonar images show something resembling a small aircraft in the Pacific Ocean near Howland Island, Earhart’s intended refueling stop. Some experts are skeptical, however, that it’s her plane. Over the years, various theories about Earhart’s fate have emerged, including that she may have been captured or become a castaway, but the prevailing belief remains that her plane crashed somewhere in the Pacific. People have long been fascinated by Earhart, says Dorothy Cochrane of the Smithsonian National Air and Space Museum, who likens Earhart’s fame while alive to that of a modern rock star. “Everybody’s pulling for her . . . and she disappears without a trace,” she told CNN. “It’s the mystery of the 20th century and now into the 21st century.”