Where the Earth ends and outer space begins, according to astronomy

A debate that has existed for decades among scholars is What is the boundary between planet Earth and outer space? According to scientists and astronomers, it is difficult to determine exactly what the boundaries with the universe are, since the Earth's atmosphere contains a diffuse and extensive gaseous atmosphere.

International Aviation Federation In the sixties Created imaginary boundaries To separate the two environments in a final way. These boundaries are named Karman line It is located at an altitude of about 100 kilometers above sea level.

Its name is in honor of the Hungarian-American physicist Theodor Kármán de Zolskislak, known for his great contributions to aeronautics and astronautics.

Experts They suggested that The boundary between Earth and space is 30 kilometers above the surface. It reaches more than 1.6 million kilometers.

Different scientists and experts made the decision Locate it below the Karman line, which is based on physical realityIt represents an approximate altitude at which conventional aircraft cannot fly.

Everything that travels across these borders Need payment system Which can be independent of the lift force generated by the Earth's atmosphere. Basically, this line is where the physical laws of the Earth change.

that it The officially defined but fictitious limit is 100 km from the surface Inside the thermosphere, which is the middle layer, extends from 80 to 700 kilometers.

These boundaries are used to separate and describe the region where the density of circulating air is insufficient for aircraft or spacecraft moving through the air with the help of aerodynamic wings.

All objects above 100 kmfrom the Karman line, is considered Satellites Because it can orbit the planet.