Apparently aliens saved Earth in 1908
By crashing their spaceship into the object that caused the Tunguska
event but might have done a lot worse:
http://www.universetoday.com/2009/05/26/scientist-claims-ufo-collided-with-tunguska-meteorite-to-save-earth/
I have also heard that the object which hit Siberia WAS the alien space
vessel, which the brave and noble crew were able to divert from
populated areas before exploding over the tundra.
So E.P., you may rest easy now... the aliens have our backs.
