How are meteorites formed? Is there anyone who was hit by a meteorite in reality?

Most meteoroids disintegrate when they enter the atmosphere. It is estimated that about 500 meteorites as small as marbles and as big as basketball still fall to the ground every year.

However, usually only 5 to 10 meteors are found falling every year and are recognized and discovered by scientists. A few meteorites are large enough to produce huge impact craters; In contrast, because other meteorites are not big enough, they have reached the limit speed when landing, and can only cause a small pothole at most.

Most meteorites fall because fireballs are observed with naked eyes, or meteorite impact craters are indeed found on the ground, or even both. Therefore, although the probability of meteorites hitting all parts of the earth should actually be equal, the verified falling meteorites are often concentrated in areas with high population density, such as Europe, Japan and northern India.

Astronomers call the brightest meteor that touches the earth a "fireball". Meteors such as fireballs will eventually affect the earth's surface anyway. Meteorites have an impact on the earth's surface and life, with different sizes. Meteorites have also been found on Mars.

When a large meteorite hits the ground, its speed may still be close to its second cosmic speed, leaving a crater under hypervelocity impact. The type of potholes depends on the size, composition, fragmentation and impact angle of meteorites. The force of this collision may cause extensive damage. The most common hypervelocity impact on the earth is caused by iron meteorites that pass through the atmosphere most easily.

1954 1 1 One afternoon in June, the sun shone in a small town in Alabama, USA. Although it was during the cold war, the sunny weather made the town look peaceful.

At this moment, Ann hodges is taking a nap on her sofa, covered with a quilt. This chubby woman is 34 years old and an ordinary rural woman. Who would have thought that she could be shot while lying like this and become a "chosen son". Yu was the first person who was hit by a meteorite in the world. He was born on that day.