What is after the ionosphere?

Above the ionosphere lies the thermosphere, which extends from about 80 kilometers (50 miles) to 600 kilometers (370 miles) above the Earth's surface. In the thermosphere, temperatures can rise significantly due to solar radiation, reaching up to 2,500 degrees Celsius (4,500 degrees Fahrenheit) or higher. This layer is also where the auroras occur and is home to the International Space Station, as well as various satellites in low Earth orbit.