They are trying to decipher the mystery of the seven-kilometer depression in Siberia. Scientists do not rule out that it was left by a meteorite similar in size to Tunguska.
A mysterious depression is found between the villages of Novaya Polyana and Krasevo in the Novosibirsk region. But the meteorite version is not the only one: the depression could have formed on the site of an ancient volcano or a vanished riverbed.
Scientists have already taken samples from different areas and depths. Their analysis should help understand what happened in this place.
The researchers admit that they like the meteorite version the best. But it is not confirmed yet.