Inside the search for Amelia Earhart, who vanished in 1937

American researchers believe they may be days away from discovering the remains of Amelia Earhart's missing plane off a remote island in the South Pacific. The legendary aviator vanished in 1937, sparking one of the world's most enduring historical mysteries.

For nearly 90 years, media organizations and researchers have tracked the disappearance. The current expedition by American researchers represents a significant new development in the decades-long quest to locate the aircraft and determine what happened during Earhart's ill-fated final flight.