The Tunguska explosion could have been caused by an asteroid that still orbits the sun - Phys.org 22-May-2020

The Tunguska explosion could have been caused by an asteroid that still orbits the sun - Phys.org

On a cool summer morning in 1908, a fireball appeared over northern Siberia. Eyewitnesses described a column of blue light that moved across the sky, followed by a tremendous explosion that leveled trees across more than 2,000 square kilometers. The explosion…

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