Space/Science — HabitableZone

Space/Science » in reply to re: Always a possibility I suppose

The Tunguska Event

The object which created the famous Tunguska Event in Siberia in 1908
was estimated to be "only" 50-60 meters (50-60 yards) in diameter, yet
it caused plenty of damage and left lasting effects in Earth's atmosphere
that lingered for months.

http://www.psi.edu/projects/siberia/siberia.html

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