The Tunguska event: the largest explosion in modern history left no crater
Tunguska, Siberia, Russia, 1908 Partly explained
Unexplained events
Explosions without craters, signals from space, planes that vanish from radar: documented events that science is still trying to close.
The Wow! signal: 72 seconds of transmission from space that no one has repeated or explained
Big Ear radio telescope, Ohio, United States, 1977 Open
Flight MH370: what the data reveals and why the largest missing aircraft in history has still not been found
Southern Indian Ocean, west of Australia, 2014 Under debate
The Voynich manuscript: the book in an unknown language that has defeated a century of codebreakers
Beinecke Library, Yale University, United States, 1421 Under debate
The Dyatlov Pass incident: nine hikers found dead in the snow and no explanation that fully closes the case
Kholat Syakhl, Sverdlovsk Oblast, Russia, 1959 Under debate
The Dancing Plague of 1518: four hundred people who couldn't stop dancing, and some died trying
Strasbourg, Alsace, France, 1518 Under debate
The Battle of Los Angeles, 1942: fighting an enemy that didn't exist, or that no one identified
Los Angeles, California, United States, 1942 Partly explained
The Plague of Athens: the disease that destroyed the greatest Greek empire and that no one has yet identified with certainty
Athens, Greece, 430 BC Under debate
The Well of Barhout: Yemen's "Well of Hell" that locals have avoided for centuries
Al-Mahra, Yemen, 2021 Partly explained
Fermi's great silence: if the universe has billions of stars, where is everybody?
Los Alamos, New Mexico, United States, 1950 Under debate