Earth

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

In the Arctic Siberian region, there is a huge crater called "the mouth of hell"

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

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

The legendary prehistoric civilization is not the only one "Atlantis", then this mysterious "yellow brick road" could be the remains of some other prehistoric civilization left behind?

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

Antarctica is the coldest region on earth and the only continent on earth without human settlement. In this untouched region, there are many strange natural phenomena, and today we are going to talk about one of them - the "Antarctic death icicle".

What exactly is the Loch Ness Monster?

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

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