Horizon - Season 3 - Eps 8: Chance and Decay / Meteorite Mystery
Europe's heritage of pictures, statues, and buildings is being destroyed at a frightening rate by atmospheric pollution, but an American scientist has just invented a method of preserving limestone. In 1908, a vast explosion shook the Tungus district of Siberia: was it due to the biggest meteorite ever to hit the earth, or something odder?
About Horizon

Title: Horizon
First Air Date: 1964-02-04
Last Air Date: 2024-07-22
Status: Returning Series
Rating: 7.3/10 (from 30 votes)
Language: EN
Seasons: 61
Total Episodes: 1162
Network: BBC Two
Genres: Documentary
Production Companies: Unknown
Synopsis
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.