First some background. Scientists have long speculated on the cause of the Tunguska impact. Perhaps the most widely discussed idea is that the explosion was the result of an icy body, such as a ...

A 15-year-old boy was tragically killed after a frame collapsed on his head ... Shocking footage shows the impact of the 2.43am explosion as a fireball erupted hundreds of feet high lighting ...

The sound of the explosion led Hassell to believe that a tree had fallen on her home. She said the impact of the blast ... was completely separated from the frame," Hassell said.

The sound of the explosion led Hassell to believe that a tree had fallen on her home. She said the impact of the blast ... was completely separated from the frame," Hassell said.