Where is the starting point of the space? How far the NASA universe
You have already stopped thinking where the weather is Terra The ends and the outer space begins? Although there is no definite partition line, there are different ways to solve this problem. In a video, Doug Roland, Heliophysics expert (sun study and its effect) NASAThe answer to this question is already dependent on the perspective followed by this.
Because as we grow up in height, the atmosphere gradually becomes more comprehensive, making it difficult to define A fixed limit between the atmosphere and space.
For NASA, a common indication is the so -called Cerman line at a height of 100 km above sea level. This brand consists of 99.9997% atmospheric mass Terra.
The International Aeronautical Federation (FAI) also uses the Karman line to classify the astronauts more than the 100 km surface. Federal Administration of Aviation USA (FAA) Any mission that reaches at least 80 km high as a commercial space plane.
There are also areas of climate beyond these limits. The 2019 study based on data from the Solar and Heliosphere Observatory (Soho) Mission NASA.
International Space Station (ISS), for example, orbits Terra A few hundred kilometers high. “The area is very different from what we live in – here, he cannot be sucked – yet there is enough weather enough to be very interesting. There is a range of phenomena that has a range of ionized gas, radiation and space climate.”
Layers of the Earth’s atmosphere
The global environment and the divided EM five main litadas: troposphere, stratosphere, mesosphere, termosfera and exospier.
The troposphere, the layer we live in is about 12 km high. The biggest wind is concentrated and all Weather phenomenon Like the clouds we see every day. On top of the troposphere, between 12 km and 50 km, there is a stratosphere, where there is an ozone layer, which is important to filter the ultraviolet radiation of the sun. Commercial planes and jets usually fly at the bottom of this layer.
The Mesosphere is on top, which reaches 80 km height. The area is the coldest point of the Earth’s atmosphere, average temperatures -85ºC. Most clouds are formed in it, and in certain conditions.
Thurst, clouds or water vapor, at an altitude of 80 km and 700 km. Here, solar wind cells interact with the gases of the atmosphere, leading to phenomena, such as borial and astral aroras – also appear in the lower areas of the exospier. ISS is definitely in orbit Thermospher.
Finally, the Exospier comes, which can extend to about 10,000 km from the surface of the earth. This layer puts most of the satellites in orbit, and their upper limit is confused with solar inflatable.
“In an angle, we live in the sun’s atmosphere,” said Roland. He explained that there was a transformation from the weather Terra For solar weather, it may indicate the limit of heliosphere until it reaches the helipasa. The effect of solar air is heliopause that leads to the interstellar wind of Galaxy.
According to the expert, the earthly climate ends 650 km – for various companies, the space begins earlier. “However, it is important to remember that the space is not a complete vacuum – beyond this time – it is full of lovely elements,” the expert said.
