There are different opinions about the reasons.
1930 put forward the theory of comet nuclear explosion.
1932 puts forward the theory that cosmic dust clouds collide with the earth.
1934 puts forward the theory that the tail of a comet hits the earth.
1945 puts forward the theory of spacecraft nuclear explosion.
1946 put forward the explosion theory of Mars spacecraft.
1947 put forward the annihilation theory of antimatter meteorites.
1958 put forward the theory of ice meteorites.
1959 put forward the theory of planetary nuclear debris.
196 1 put forward the theory of UFO split.
A few days ago, I saw the 10 set in the center of my eye, and found that nikola tesla, a great inventor and physicist, became the protagonist of a conspiracy theory, which accused him of creating the 1908 inexplicable Big Bang in Tunguska, Siberia.
Later, a scientist named Fast measured that the trees destroyed by the big bang covered an area of about 850 square miles. Later, after 35 years of hard work, Fast spelled out a detailed map of the destroyed trees in this area. According to this map, scientists calculated that this virgin forest was destroyed by a celestial body flying from west to east, equivalent to1~ 20 million TNT equivalent, and exploded at a height of 4 miles from the ground. At this point, the real cause of the big bang gradually surfaced.
Italian nuclear physicists tested by heavy isotope method, and the content of trace elements in fir destroyed in 1908 was much higher than that in other years, so these trace elements could not have originated from the earth. Obviously, the Big Bang was related to meteorites.
I hope it helps you!