Today (June 30, 2020) is 112 years ago that a 100 mtr asteroid exploded in the atmosphere over the desolated Tunguska area in Russia. A forest area of 2000 km2 was instantly flattened. Just 7 years ago, in the morning of february 15, 2013, we were reminded again. An airburst of the Chelyabinsk meteor created an explosion of about 30 times the Hiroshime atomic bomb at an altitude of 30 km. This time, the casualties were not trees but windows, that shattered all over the place.
These events should explain humanity why the dinosaurs never celebrated Asteroid day. They were violently wiped out 65 million years ago by an asteroid, with a diameter of at least 10 km. The remaining Chicxulub crater in Mexico is still the remaining witness of this event.