Mercury

Mercury is the smallest and closest planet to the sun. This planet is very difficult to observe. The size of Mercury is only slightly larger than the moon. This planet is very difficult to observe because the planet has a close proximity to the sun. On the afternoon of dazzling sunlight does not allow observation, and in the evening planet disappeared almost as fast as the disappearance of the sun. The planet is only visible when a low position near the horizon, that is shortly before sunrise, or shortly after sunset. The most interesting is that the planet Mercury always exposes the same surface toward the sun. Because the temperature is very hot, it is believed there could be no life on Mercury.