Scientists say they've finally located the crater from the 1908 space impacted that flattened 770 square miles of forest and released 1000 times as much energy as the Hiroshima atom bomb.
In their new study, a team of Italian scientists used acoustic imagery to investigate the bottom of Lake Cheko, about five miles (eight kilometers) north of the explosion's suspected epicenter.
"When our expedition [was at] Tunguska, we didn't have a clue that Lake Cheko might fill a crater," said Luca Gasperini, a geologist with the Marine Science Institute in Bologna who led the study.
