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http://news.nationalgeographic.com/news/2007/11/071107-russia-crater.html
http://news.nationalgeographic.com/news/2007/11/071107-russia-crater.htmlCrater From 1908 Russian Space Impact Found, Team Says
Almost a century after a mysterious explosion in Russia flattened a huge swath of Siberian forest, scientists have found what they believe is a crater made by the cosmic object that made the blast [continued]
Ivan Seeking said:http://news.nationalgeographic.com/news/2007/11/071107-russia-crater.html
The Siberian Impact Crater Found refers to a large crater that was discovered in 1908 near the Podkamennaya Tunguska River in Siberia, Russia. It is believed to have been caused by a massive explosion, known as the Tunguska event, which occurred in the Earth's atmosphere.
The exact cause of the Tunguska event is still debated by scientists. Some theories suggest it was a meteorite or comet that exploded in the atmosphere, while others propose it may have been caused by a small black hole or antimatter. However, the most widely accepted explanation is that it was caused by a meteoroid or comet fragment.
The Siberian Impact Crater is estimated to be about 50-60 meters in diameter, with a depth of around 5-10 meters. It is relatively small compared to other impact craters on Earth, but the explosion is believed to have been equivalent to about 10-15 megatons of TNT, making it one of the largest explosions in recorded history.
There have been several expeditions to the site of the Tunguska event, but no one has been able to reach the actual impact crater. This is because the area is remote and difficult to access, with dense forests and marshy terrain. However, researchers have been able to study the area through aerial surveys and satellite imagery.
Currently, there is no known danger from the Siberian Impact Crater. However, if a similar event were to occur in a more populated area, it could cause significant damage and loss of life. Scientists continue to study the Tunguska event and impact craters in general to better understand the potential risks and effects of such events.