"Fireball" reappears in the American night sky?
I believe everyone still remembers that we have shared a topic before, that is, a roaring fireball appeared in the sky of the United States at about 8:00 a.m. on April 27, 2022. At first, scientists believed that the flying speed of this roaring fireball may reach an hourly speed. 55,000 miles, or 24,587 meters per second, which is at least twice the speed of Earth's second universe. Later, new research by scientists showed that the speed of the roaring fireball may not be as fast as previously predicted, about 35,000 miles per hour, or 15.6 kilometers per second. Although not as fast as predicted at the beginning, this speed is still quite astonishing, faster than the vast majority of human aircraft and spaceships.