| 1 | Those are planets like Mercury, Venus, Earth and Mars. | |
| 2 | Just after sunset, the planets Mercury and Venus are visible quite near each other. | |
| 3 | Of all the inner planets, only Mercury and Earth boast such a field. | |
| 4 | Check out the following list to discover how to make Mercury Retrograde work for you. | |
| 5 | In theory, you need molten iron in the core to generate one, but Mercury is so small, its core should have long since solidified. |