NASA SHOCK: How mystery explosion WIPED OUT 800-miles of Russia – BAFFLING scientists

This was backed up in 2013, when a team at the National Academy of Sciences of Ukraine, led by Victor Kvasnytsya, analysed microscopic samples from the site. 

The remnants had traces of a carbon mineral called lonsdaleite, which has a crystal structure almost like a diamond. 

This particular mineral is known to form when a graphite-containing structure, such as a meteor, crashes into Earth.

Dr Kvasnytsya said: “Our study of samples from Tunguska, as well as research of many other authors, reveals meteorite origin of Tunguska event.