Agaeva Kristina and Nemerovich Veronika

- What happened?
- When?
- Where?
- Who investigated it first?
- What did the scientists find out later?
- Can we explain the mystery now?

What happened?
 
Huge fireball crossed the hight sky and then exploded.
- When?
On 30 June,1908.
- Where?
The  explosion happened in Siberia, in Russia, in a place called Tunguska.