**Concept: Layers of Earth's Atmosphere**

1. **Exosphere**
   - Icon: Stylized spacecraft
   - Temperature: 1200°C
   - Altitude: 800 to 3000 km

2. **Thermosphere**
   - Icon: Aurora depiction with colorful waves
   - Temperature: -86.5 to 1200°C
   - Altitude: 80 to 800 km

3. **Mesosphere**
   - Icon: Shooting star or small meteor
   - Temperature: -2.5 to -86.5°C
   - Altitude: 40 to 90 km

4. **Stratosphere**
   - Icon: Balloon or circular object
   - Temperature: -56.5 to -2.5°C
   - Altitude: 11 to 50 km

5. **Troposphere**
   - Icon: Simple airplane and landforms
   - Temperature: 15 to -56.5°C
   - Altitude: 0 to 12-18 km

**Design Elements:**
- Background: Starry night sky with subtle gradient
- Font: Modern sans-serif for clarity
- Color Scheme: Soft blues and greens contrasted with warmer colors for icons

**Features to Alter:**
- Change icons to represent different modes of travel (e.g., hot air balloon instead of a passenger plane).
- Introduce playful cloud shapes in the background instead of solid colors.