the Tunguska object
Stato: U.S.S.R. Anno: 1958 Notizie: On August 12, 1958 the Soviet Union issued a stamp to commemorate both the 50th anniversary of the Tunguska impact event in June, 1908 and the seventy-fifth anniversary of Leonard A. Kulik's birth. Kulik led several scientific expeditions to Tunguska, including the first one in 1927. The Scott catalog number for this stamp is 2088. The exact composition of the Tunguska object is still debated. Some believe it was a stony body, while other believe it was a cometary fragment. In either case, the object exploded in the atmosphere with a force equivalent to between ten and twenty megatons of TNT. The resulting blast wave leveled hundreds of square kilometers of forest. |
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