Sixty-nine years ago this past Friday, Amelia Earhart became the first woman to fly non-stop across the United States.

Five years after her record cross-country flight, Amelia Earhart vanished over the Pacific Ocean while attempting to fly around the world. Her disappearance has fascinated researchers for decades.

Three teams with different theories are trying to find out what happened to Amelia Earhart, as you can hear in this Dateline report.

If you prefer, you may download a copy of this report for later listening.

Every Monday through Friday Dateline examines an issue in the news. Listen to these recent Dateline programs:

Middle East Perils
Star Party
National War Memorial
Macedonia's Fragile Peace Process
Maritime Piracy
Bulgaria's Royal Prime Minister
Air Rage
Air Crash Investigators