1. If we never see the back side of the Moon, would an observer on the back side of the Moon ever see Earth? 2. In what alignment of the Sun, the Moon, and Earth does a solar eclipse occur? 3. In what...

1. If we never see the back side of the Moon, would an observer on the back side of the Moon ever see Earth?

2. In what alignment of the Sun, the Moon, and Earth does a solar eclipse occur?

3. In what alignment of the Sun, the Moon, and Earth does a lunar eclipse occur?