Here's why:

* The thermosphere is a layer of Earth's atmosphere. It's located above the mesosphere and below the exosphere.

* Stars are celestial objects located far beyond Earth's atmosphere. They are massive balls of hot gas that emit light and heat.

* The thermosphere is simply a region of gas surrounding Earth. It's characterized by extremely high temperatures due to the absorption of solar radiation.

While we can see stars from Earth's surface, those stars are located outside of Earth's atmosphere, including the thermosphere.