1. The micrometeorite detector and sun scanner were mounted on the sphere. 2. However, the protective layers are subject to erosion by micrometeorites . 3. When micrometeorites hit it, they turn to plasma and expand. 4. The shutter is needed to protect the window from damage from micrometeorites . 5. The shutter is needed to protect the window against damage from micrometeorites . 6. The micrometeorite detector and sun scanner were mounted on the sphere as well. 7. Micrometeorites in particular produce a glassy melt in the regolith that lowers the albedo.8. Gradually the crater and its ejecta undergo impact erosion from micrometeorites and smaller impacts. 9. Micrometeorite shielding is incorporated into the station to protect pressurised sections and critical systems.10. The surface has also experienced space weathering due to high energy particles and micrometeorites .