Is it possible to see the sunrise and sunset of the Earth on the Moon?
It is known that the moon always faces the Earth on one side, but for someone who is on the Moon, the Earth will not be hanging motionless in the sky. This is due to the fact that, firstly, the moon's orbit is not circular, but elliptical, and secondly the moon axis of rotation is inclined to the axis of the orbit around the Earth.
Due to these small movements, which is called generalized libration, the observer on Earth are available for viewing in the aggregate 60% of the lunar surface. In turn, the observer located on the border of the lunar disk, can see the sunrise and sunset of the Earth.
- In our galaxy there are 500 million planets potentially suitable for life.
- discovered the first potentially habitable planets.
- A solar flare in 2012 will not destroy the Earth.