Understanding thePassage
Meteorite explosions in the Earth's atmosphere as large as the one that destroyed forests in Siberia, with approximately the force of a twelve-megaton nuclear blast, occur about once acentury.
The statement says that meteorite explosions of a particular size in the Earth’s atmosphere occur about once a century.
Of what size?
As large as the one that destroyed forests in Siberia. The explosion had a force of a 12-megaton nuclear blast.
Such large meteorite explosions
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