№ 0009 Énigme Ouverte Rédigé par l’IA Affaire de démarrage
What caused the Tunguska explosion of 1908?
Tunguska event
On the morning of 30 June 1908 an enormous explosion flattened forest over about 2,000 square kilometres in Siberia. No crater was ever found.
Chronologie
Les dates clés de l’affaire et les événements tirés des preuves, dans l’ordre.
- Trees were flattened in a radial pattern, with trees left standing at the centre Podkamennaya Tunguska · A stony asteroid exploded in the air
- Witnesses described a bright object moving across the sky before the blast A release of natural gas from the Earth's crust
- Night skies glowed across Europe for several nights afterwards A fragment of a comet exploded in the air
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