Where is the eye of the Earth? How do astronauts return to Earth?

A space station, also known as a space station or a space station, is a manned spacecraft that operates in low-Earth orbit for a long time. It is large in size and complex in structure. How far is a space station from the Earth's surface? Today we will take a look at it and also share how astronauts return to Earth.

Contents of this article

1. Where is the Eye of the Earth?

2. How do astronauts return to Earth?

3. How far is the space station from the Earth's surface?

Where is the Eye of the Earth?

The Eye of the Earth is located in Mauritania, southwest of the Sahara Desert in Africa. It is also known as the "Eye of the Sahara" and the "Richard Structure". It has a diameter of 48 kilometers and is clearly visible even from space. It is one of the top ten most spectacular geological wonders in the world.

In the early 1960s, American astronauts observed a round object appearing in the southwestern Sahara Desert from space hundreds of kilometers away from the earth, staring at the space like an eye.

The Eye of the Sahara was originally thought to have been formed by a meteorite impact, but geologists now believe it may have been caused by the uplift of geological structures or erosion.

The formation of the ring-shaped shape of the Eye of the Sahara remains a mystery.

How do astronauts return to Earth?

After completing the scheduled mission, the manned spacecraft will return to Earth in the return capsule according to the route specified by experts. The entire return process requires four stages: braking to deorbit, free descent, re-entry into the atmosphere, and landing. When returning, the return capsule will re-enter the atmosphere under the action of gravity, then open the parachute to slow down, and use the buffer device to land safely on the ground.

When astronauts return to Earth, ground staff need to make preparations in advance, determine a suitable landing site and keep an eye on the day's weather trends.

Generally, a manned spacecraft can be divided into three parts: a propulsion module, an orbital module and a return module.

The parachute system of the return capsule is generally composed of a guide parachute, a deceleration parachute, a main parachute and a parachute pack.

How far is the space station from the Earth's surface?

The space station is about 320 to 350 kilometers away from the earth. The orbital altitude of the space station is about 320 kilometers at the perigee and about 350 kilometers at the apogee. Because the orbit needs to be adjusted and is sometimes affected by the earth's gravity, the value of the space station from the earth's surface is an approximate value.

A space station, also known as a space station or a space station, is a manned spacecraft that operates in low-Earth orbit for a long time. In order to ensure accurate docking with cargo spacecraft and manned spacecraft, the International Space Station needs to make multiple orbital adjustments every year.

The space station is relatively large in size and has a complex structure. It can fly in orbit for a long time. At the same time, it has multiple functions and can provide a wide range of space scientific research projects.