Technically, any planet can be seen at midnight, depending on where you are on Earth and what time of year it is. The Earth's rotation and the planets' orbits mean that their positions in the sky change constantly.
However, there are some planets that are more likely to be visible in the evening or morning sky rather than around midnight. These are:
* Mercury and Venus: These planets are called "inferior planets" because they orbit closer to the Sun than Earth does. This means they are always relatively close to the Sun in the sky and are only visible for a short time after sunset or before sunrise.
* Mars: Mars is sometimes visible at midnight, but it's more likely to be seen in the evening or morning sky, depending on its position in its orbit.
So, while no planet is *never* seen at midnight, some planets are much less likely to be visible around that time due to their orbital positions.
