What was the Tunguska event of 1908?
On 30 June 1908 an object, most likely a small asteroid, exploded in the air over remote Siberia, flattening a huge area of forest without leaving a crater.
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Science
Strange events
What was the Wow! signal?
The Wow! signal was a strong, narrowband radio burst recorded in Ohio on August 15, 1977. It has never repeated, and its origin remains unexplained.
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