Science a GoGo's Home Page Forums General Discussion General Science Discussion Forum Something Exploded at Tunguska

Up to now, it is not clear whether the great explosion was due to a comet or an asteroid or something else. We are searching for an answer.
Scientists have depth sounded the sides of lake Cheko, situated five milews from the impact a few miles from the Tunguska impact.

Its cone like shape tells them that it was a low velosity impact.
They have found the reflection of an object sitting below the mud level, but what is it?

http://www-th.bo.infn.it/tunguska/

This is one of those mysteries we'll never know the full truth about. Here's my personal favorite.

http://www.tfcbooks.com/articles/tunguska.htm