It is possible, because, being at this moment usually lower or higher than the Sun, the Earth would theoretically appear to be an extremely narrow crescent with a bulge facing the Sun, and would practically be visible in the black sky of the Moon. The sun would come to the Earth and pass it, and the Earth’s sickle would gradually roll from one side to the other at this time.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.