Complex sentence: Technician Ted Clifford enters Main Mission to perform a minor maintenace task; as he unpacks his tool kit at an access panel near one of the windows, he fails to notice a sphere of orange light materialising above the lunar horizon.
Split into simpler sentences: Technician Ted Clifford enters Main Mission to perform a minor maintenace task. As he unpacks his tool kit at an access panel near one of the windows, he fails to notice a sphere of orange light materialising above the lunar horizon.