According to a prominent astrophysics professor from Queen’s University in Belfast, Ireland, an asteroid strike to Earth is a matter of time, reported the Belfast Telegraph Wednesday.
Professor Alan Fitzsimmons issued this warning because of Asteroid Day, which is held on June 30 to remember the 1908 Tunguska event in Siberia. On June 30, 1908, an explosion hit the region surrounding the Podkamennaya Tunguska River in Siberia. It destroyed 800 square miles of the forest and ripped 80 million trees from the ground.
For years, the cause of the explosion was unknown, but the most widely accepted conclusion was that a space rock hit Siberia. The object weighed 220 million pounds and generated the energy equivalent of 185 Hiroshima bombs.