How far has the earth gone in the universe?

First of all, to correct it, the earth does not fly in the universe, but rotates around the sun under the action of gravity, and rotates around the center of the Milky Way with the sun. These speeds are as follows: it takes about 24 hours for one rotation, and the equatorial circumference of the earth is about 40 thousand kilometers, that is to say, the earth revolves around the equator for 40 thousand kilometers, so the equatorial linear speed is about 1, 666.67 kilometers/hour, about 463 meters/second; The earth revolves around the sun once a year, because this orbit is not a perfect circle, but an ellipse with a large eccentricity, so it takes 940 million kilometers to complete a week, with a speed of 29.79 kilometers per second; What about the sun? It takes 250 million years to circle the center of the Milky Way, and there are chaotic disciples and grandchildren of planets, dwarf planets, satellites, asteroids, debris and dust in the solar system.

This is the so-called "flying" speed of the earth in the universe. And the statement "how fast the earth runs day and night all the year round" is even more incomprehensible.

The earth doesn't work during the day and doesn't hibernate like a snake in winter. It runs day and night all year round, working hard, carrying a bag of seawater and human homes, flowers, insects, birds and animals, and everything is constantly turning. One day it suddenly broke down, which was a catastrophe. If you want to know what the earth would look like if it stopped for a while, you can look at the articles published in the past time and space newsletter, which have detailed descriptions.

Here, I want to talk about why the earth takes a ride to popularize science all year round. The sun is the boss of the solar system, and everything on earth cannot be separated from the gift of the sun. So spring, summer, autumn and winter are also commanded by the sun. The place where the sun is direct is summer, the place where the sun is most biased is winter, and the places where it is not direct are spring and autumn.

The rotation axis of the earth is not perpendicular to the revolution plane, which leads to the angle between the equator and the ecliptic of 23.26 degrees, that is, this angle forms a tropic of cancer in the relationship between the earth and the sun, and the sun illuminates the earth between the two tropic lines. Because the earth revolves around the sun, the sun shines in different parts, resulting in four seasons. A detailed explanation of the causes of the four seasons throughout the year is also elaborated in the original text of the time-space newsletter. Those interested can go and have a look. This is a popular science for hitchhiking and won't take up space.