What layer of the atmosphere do the International Space Station occurs?

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.