Earth

With the progress of science and technology, human beings have now begun to increase their efforts to explore the universe and the ocean. With the help of advanced submersibles, more and more people have the opportunity to dive into the deep sea thousands of meters deep for research. It is also with the arrival of human beings that we found that there are some things in the deep ocean that should not exist, which are worrying.

In orbit for longer and longer periods of time, we need to solve not only inorganic resupply problems such as food, water, oxygen and propellant, but also the various problems faced by astronauts flying in orbit for long periods of time

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.

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

The earth's water resistance comes from the high temperature, pressure and density of its interior

The 500 trillion ton comet was discovered in 2010 by astronomers Pedro Bernardinelli and Gary Bernstein

The climate patterns on Earth will then become chaotic, and humans will lose the ability to control and drive the Earth's climate to remain stable and conducive to the habitability of humans and the Earth's biosphere as a whole

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

Dinosaurs left a fascinating chapter in the evolution of life on earth, first appearing some 230 million years ago and "Ruling" The planet for 160 million years. To this day, there are numerous dinosaur fossils scattered around the world, still silently telling us of their former glory.

The seven stars in a row are Saturn, Neptune, Jupiter, Mars, Uranus, Venus and Mercury in the solar system.