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the layer is the thermosphere THERMOSPHERE IS THE ANSWER
The International Space Station (ISS) orbits within the thermosphere, which is located about 200 to 400 kilometers (124 to 248 miles) above Earth's surface. This layer of the atmosphere is characterized by high temperatures and low density. The ISS typically operates at an altitude of approximately 400 kilometers (about 248 miles). The thermosphere also contains the ionosphere, which is important for communication and navigation systems.
The International Space Station (ISS) orbits within the thermosphere layer of the Earth's atmosphere. The ISS orbits at an average altitude of about 420 kilometers (260 miles) above the Earth's surface, within the thermosphere where the auroras occur and temperatures can reach thousands of degrees Celsius.
The International Space Station (ISS) orbits in the thermosphere, which is located approximately 300 to 400 kilometers (about 186 to 248 miles) above the Earth's surface. This layer of the atmosphere is characterized by high temperatures and low atmospheric density. The ISS travels at a speed of around 28,000 kilometers per hour (17,500 miles per hour) in this layer, allowing it to complete an orbit around the Earth roughly every 90 minutes.
That is the ionosphere.
Planes can go up to the STRATOSPHERE.
stratosphere
A layer in atmosphere is at risk. The layer is ozone layer.
The Shuttle and the ISS orbit in the thermosphere or ionosphere (I think both terms are correct, not sure but I've heard both). This layer starts at 85km and goes up to 600km, after which is the exosphere. "Space" technically starts at 100km. The ISS orbits around 350km, and obviously so does the Shuttle when it is docked, although when it first gets in to orbit the Shuttle is only at about 150km and speeds up over the few days after launch to match its orbit with the ISS. It is still atmosphere because there are stray atoms of oxygen and such up there. In fact there is enough of it that periodically the ISS has to speed itself back up because even though the amount of drag is infinitesimal, it still slows it down slightly over time.
The layer with the highest oxygen content in the Earth's atmosphere is the troposphere, which is the lowest layer where we live and where weather occurs. As you go higher in the atmosphere, the oxygen concentration decreases.
The ozone layer is in the stratosphere. It is one of the layer of atmosphere.
The ozone layer is in the stratosphere. It is one of the layer of atmosphere.