Outer Space
The last layer of the Earth's atmosphere is the exosphere. This layer is the outermost layer of the atmosphere and extends beyond the thermosphere. The exosphere is where the atmosphere gradually transitions into outer space.
Above: the rest of the stratosphereBelow: the rest of the troposphere
In the case of bodies with substantial atmospheres, such as Earth's atmosphere, the exosphere is the uppermost layer, where the atmosphere thins out and merges with interplanetary space. It is located directly above the thermosphere.
The first layer above the surface is the Troposphere. This is followed by the Stratosphere, Mesosphere, Thermosphere, and Exosphere
The thermosphere does not extend above the polar regions. This layer of the atmosphere is known for its high temperatures due to absorption of solar radiation and recombination of ions and neutral particles. Above the poles, the thermosphere merges into the exosphere, the outermost layer of the atmosphere.
If they are in the atmosphere (low earth orbit), satellites are in the ionosphere. If they are in higher orbits, satellites are considered to be outside the atmosphere.
Just a guess but maybe the exosphere!! But also it could be the Thermosphere, which is the Ionosphere and Exosphere combined.
The layer of the atmosphere that is approximately 550 km to 1000 km above Earth's surface is the exosphere. This region is the outermost layer of the atmosphere where the gases are very thin and the few particles present can escape into space. The exosphere is where the atmosphere merges with outer space.
exosphere
The outermost main layer of Earth's atmosphere is the exosphere. It extends from about 500 km to 10,000 km above the Earth's surface. The exosphere is where the Earth's atmosphere transitions into outer space.
The ozone layer is in the lower stratosphere, so:the rest of the stratospherethe mesospherethe thermosphere, and finallythe exosphere.
Exosphere
The layer of the atmosphere that merges into outer space is the exosphere. This is the outermost layer of the Earth's atmosphere where the air is very thin and gradually blends into the vacuum of space.
The thinnest layer of the atmosphere is Exosphere.
The highest layer of atmosphere is the exosphere. The layers from earth are; troposphere, stratosphere, mesosphere, thermosphere, exosphere.
The last layer of the Earth's atmosphere is the exosphere. This layer is the outermost layer of the atmosphere and extends beyond the thermosphere. The exosphere is where the atmosphere gradually transitions into outer space.
The uppermost layer of the atmosphere is called the exosphere. It extends from about 500 km (310 miles) above the Earth's surface to the edge of space. It is where the atmosphere gradually transitions into the vacuum of outer space.