Russian Scientists Propose New Hypothesis on the Impact of the Tunguska Meteorite
On June 30, 1908, a massive aerial explosion occurred near the Podkamennaya Tunguska River in what is now the Krasnoyarsk
Novosibirskaya Oblast Tul Skaya Oblast Irkutskaya Oblast Krasnoyarskiy Kray University Of Bologna Doklady Earth Sciences
Source: mysteriousuniverse.org