) over the remote region of tunguska in siberia The explosive energy from the meteor was so great that half a million acres of siberian forest were devastated and some tree were knocked over at distances as far as 25 miles ( 40 kilometers ) away
)over the remote region of tunguska in siberiaThe explosive energy from the meteor was so great that half a million acres of siberian forest were devastated and some tree were knocked over at distances as far as 25 miles ( 40 kilometers ) away