* Troposphere: The shuttle takes off from this lowest layer, where weather occurs.
* Stratosphere: This layer is where the shuttle reaches its initial climb and experiences the most atmospheric drag. The ozone layer within this layer protects us from harmful UV radiation.
* Mesosphere: The shuttle continues its ascent through this layer, which is also home to the coldest temperatures in the Earth's atmosphere.
* Thermosphere: This layer is where the shuttle enters the "edge of space" (often considered to be the Kármán line, 100 km or 62 miles above Earth). The thermosphere is characterized by extremely high temperatures but very low density.
While technically entering the thermosphere, space shuttles are not truly in space until they reach orbit. The shuttle needs to gain enough speed to overcome Earth's gravity and achieve a stable orbit. This typically occurs at around 160-200 km (100-124 miles) above the Earth.
So, it's more accurate to say that the space shuttle passes through multiple layers of the atmosphere during its mission rather than residing in just one specific layer.
