Nikolaev is a crater on the far side of the Moon, so that it cannot be observed from earth.
Because it is on the far side of the Moon, it is not visible from Earth. Nikolaev is a crater on the far side of the Moon.
Nikolaev is a crater on the far side of the Moon. Because it is on the far side of the Moon, it is not visible from Earth.
Nikolaev is a crater on the far side of the Moon. Because it is on the far side of the Moon, it is not visible from Earth.