Isiganeko saseTunguska: Yintoni eyabetha iSiberia ngamandla eebhombu zeathom ezingama-300 ngo-1908?
Eyona ngcaciso ingaguquguqukiyo iqinisekisa ukuba yayisimeteorite; nangona kunjalo, ukungabikho kwecrater kwindawo yempembelelo kuye kwavusa zonke iintlobo zethiyori.