The wonderful knowledge of the universe is fully displayed! How far is a light year?

Many people have an innate curiosity about the universe. When we were children, we would look at the stars in the sky and think a lot. When we grow up, we are interested in all kinds of space activities. If so, you must know the following knowledge about the cold universe.

Light-year distance

We often hear that the distance is light years, but how far is a light year? In fact, the so-called 1 light year refers to the distance unit covered by light in 1 year. It is known that light moves more than 300,000 kilometers per second, so a light year is almost 10 trillion kilometers. Imagine that our galaxy is 105700 light years, and its vastness is beyond imagination.

Metal snow is falling on Venus.

Although Venus is the hottest planet in the solar system, it will snow, but this kind of snow is completely different from the snow on the earth. Venus is an anxious sulfuric acid planet, so the powdery water-based snow on our planet will naturally not appear here. Scientists believe that the so-called snow on Venus is mainly formed by heavy metal compounds freezing from liquid to solid and then falling from the sky.

How's it going? Haven't you heard of such cold knowledge of the universe? As we think, compared with the vast universe, human beings and even the earth are as fragile as dust, and it is such human beings who have been devoted to exploring the secrets of the universe. Who can say that this is not great?