hmm.. i'm guessing that you're reffering to
this article involving this picture?
Wow... I especially like these two parts:
<i>The explosion, equivalent to 10-15 million tonnes of TNT, occurred over the Siberian forest, near a place known as Tunguska.
An atmospheric shock wave circled the Earth twice. And, for two days afterwards, there was so much fine dust in the atmosphere that newspapers could be read at night by scattered light in the streets of London, 10,000 km (6,213 miles) away.
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