http://www.abc.net.au/news/newsitems/200408/s1174826.htm
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try this link.
Russian scientists claim to have discovered the wreck of an alien device at the site of an unexplained explosion in Siberia almost 100 years ago, the Interfax news agency has reported.
The scientists, who belong to the Tunguska space phenomenon public state fund, said they found the remains of an extra-terrestrial device that allegedly crashed near the Tunguska river in Siberia in 1908.
They also claim to have discovered a 50 kilogram rock which they have sent to the Siberian city of Krasnoyarsk for analysis.