Earth

The earth was born more than 4 billion years ago, when it was very different from the earth of today, one of which is that the environment of cosmic space is more different.

If we dig up all the sand in the Sahara Desert, then we can see the "bedrock" of this desert

Since there are many lakes in China, many of them have the title of "largest".

According to the speculation of some netizens, these so-called UFOs may just be farce

According to some scientists, the earth itself did not exist billions of years ago, but about 4.6 billion years ago, a giant interstellar molecular cloud gravitationally collapsed to form the solar system. Some dwarf planets, moons, asteroids and other bodies that are somewhat smaller in size than the planets. This is how our home on earth was formed, but in the early days of its formation the earth was not as beautiful as it is today, the newly born earth was shown to be made up of magma, a boiling 'ocean' if you will.

For humans, the universe is too dimensional for us to see the details of its depths for the time being

In this 5.5 million-year-old cave, not only is there no sunlight, but the environment is also very harsh