The Tunguska Event

Photo of fallen trees from the Tunguska event taken in May 1929 during Leonid Kulik's expedition. Public domain

On June 30, 1908 at approximately 7:15am, the sky over Siberia lit up with what was described by witnesses as a massive fireball, or the sky engulfed in fire. For the last century, scientists have been trying to figure out exactly what happened.

Holly's Research:

  • Hogenboom, Melissa. “In Siberia in 1908, a Huge Explosion Came Out of Nowhere.” BBC/ July 7, 2016.
  • Kulik, L. A. “The Meteorite of June 30, 1908, in Central Siberia.” Astronomical Society of the Pacific Leaflets, Vol. 3, No. 109, p.78. Accessed online:
  • Rincon, Paul. “Fire in the Sky: Tunguska at 100.” BBC. June 30, 2018.
  • Tedesco, Edward F. “Tunguska Event.” Encyclopædia Britannica. May 22, 2018.
  • Valsechhi, Maria Christina. “Crater From 1908 Russian Space Impact Found, Team Says.” National Geographic News. Nov. 7, 2007.
  • Jackson, A.A. IV and Michael P. Ryan, Jr. “Was the Tungus Event Due to a Black Hole?” Nature. Vol. 245. Sept. 14, 1973.
  • Beasely, William H and Brian A. Tinsley. “Tungus Event Was Not Caused by a Black Hole.” Nature. Vol. 250. Aug. 16, 1974.
  • Philips, Dr. Tony, ed. “The Tunguska Impact--100 Years Later.” NASA Science News. June 30, 2008.
  • Gasperini, L. et al. “A possible impact crater for the 1908 Tunguska Event.” Terra Nova. Vol. 19, Issue 4. June 15, 2007. Accessed online:
  • Collins, G.S. et al. “Evidence that Lake Cheko is not an impact crater.” Terra Nova. Volume 20, Issue 2. Feb. 18, 2008.
  • Kresak, L. “The Tunguska Object: A Fragment of Comet Encke?” Astronomical Institutes of Czechoslovakia, Bulletin, vol. 29, no. 3, 1978, p. 129-134.
  • Talbert, Tricia, ed. “Five Years after the Chelyabinsk Meteor: NASA Leads Efforts in Planetary Defense.” NASA. Feb. 15, 2018.
  • Florenskiy, K.P. “PRELIMINARY RESULTS FROM THE 1961 COMBINED TUNGUSKA METEORITE EXPEDITION.” Meteoritica. Vol. XXIII. 1963. Accessed online:
  • Artemieva, Natalia A. and Valery V. Shuvalov. “From Tunguska to Chelyabinsk via Jupiter.” Annual Review of Earth and Planetary Sciences. Vol. 44:37-56 (Volume publication date June 2016)
  • “Outline History of Nuclear Energy.” World Nuclear Association.

Topics in this Podcast: history mysteries, astronomy, Asian history, Russia, Siberia, 20th century