It seems like we can finally close the book on America's most famous unsolved missing person's case.
New research may have finally solved the mystery of famous pilot Amelia Earhart, who vanished in 1937.
The groundbreaking aviator was just 39 when she disappeared, but had already become world-famous as a pioneering female flyer.
Earhart set records as the female pilot who flew the furthest and the highest, including becoming the first woman to fly across the Atlantic Ocean solo.
She was attempting her most daring feat of all - a 29,000 mile round-the-world flight - when she and her navigator, Fred Noonan, vanished without a trace.
The Doomed Flight
Earhart and Noonan began their voyage on July 2, 1937, from the small Pacific island of Papua New Guinea.
The pair were heading east for Howland Island, more than 2,500 miles away.
During the flight, Earhart reported bad weather, thick clouds, and trouble with her plane's on-board radio.
Earhart's last message before vanishing was this:
"Gas is running low. Have been unable to reach you by radio. We're flying at 1,000 feet."
Since then, professional investigators and amateur sleuths have puzzled over just what happened to Earhart, and there has been no shortage of strange theories in the decades since she disappeared.
But an expert says he has finally proven one of them to be true with "99.9%" certainty.