Realistic pictures of the event are unavailable. However, Russian scientists collected eyewitness accounts of the event. I believe that we now know enough about large impacts to "decode" the subjective descriptions of the witnesses and create realistic views of this historic asteroid impact as seen from different distances.
Tunguska
At 7:17 AM on the morning of June 30, 1908, a mysterious explosion occurred in the skies over Siberia. It was caused by the impact and breakup of a large meteorite, at an altitude roughly six kilometers in the atmosphere.
Nearly a century later, scientists are still debating what happened at that remote spot. Was it a comet or an asteroid? Some have even speculated that it was a mini-black hole, though there is no evidence of it emerging from the other side of the Earth, as it would have done.
What is more, none of the samples of soil, wood or water recovered from the impact zone have been able to cast any light on what the Tunguska object actually was.
Researchers from several Italian universities have visited Tunguska many times in the past few years. Now, in a pulling together of their data and information from several hitherto unused sources, the scientists offer an explanation about what happened in 1908.
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