Purdue University revealed the Nikumaroro lagoon anomaly suspected to be Amelia Earhart's missing plane was actually tree debris with a carbonate coating.
https://www.foxnews.com/travel/amelia-earhart-search-suffers-crushing-setback-researchers-make-disappointing-find
https://www.foxnews.com/travel/amelia-earhart-search-suffers-crushing-setback-researchers-make-disappointing-find