Tunguska event

Overview

A large airburst over remote Siberia that flattened roughly 2,000 square kilometres of forest without leaving an impact crater — the largest asteroid or comet impact in recorded history.

Figures are given only where scientifically established; this page describes the event factually, without exaggeration.

Sources

Facts on this topic will be cited from these primary and reference sources.

• NASANational Aeronautics and Space Administration

  Mission data, planetary science, space telescopes, and public-domain imagery.

  Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.

• BritannicaEncyclopaedia Britannica

  General reference for the history of astronomy, biographies, and cultural context.