The planet Mercury is the closest of the planets to the Sun. Because this planet lies so close to the Sun, and as a result somewhat near to Earth, it is visible to. Enjoy amazing trivia and have fun learning about the planets found in our Solar System. Interesting facts about Mercury Mercury Facts for Kids. Mercury is a. Mercury - The Solar System - Animation Educational Videos For Kids The four outer planets, the gas. All celestial bodies within the Solar System are subject to these bombardments. Nerves and the Nervous System - The The Disease Fighters Germs and Bacteria. This is due to the planets quick orbit of the sun, travelling at a speedy 30 miles 48 kilometres per second. This is because Mercury shines brightly in the early morning just before the sun rises. The atmosphere on Mercury is very thin. But while Mercury's days are very long, its revolution around the Sun is rather fast. This is the length of time it takes for the planet to orbit the sun The planet may be orbiting at a fast speed but it is not so quick to rotate. Our Astronomy Site Our Biology Site Our Dinosaur Site Our Geology Site Our Geography Site Our History Site Our Math Site Our Memory Site Our Spelling Site Miamiopia. Since this surface volcanic activity cannot happen, Mercury will forever retain its scars.