Introduces the planet Mercury, discussing its physical characteristics, orbit, and the technology used to study the planet.
Looking at Mercury from Earth Have you ever run around a tree ? Next time , pretend the tree is the Sun. Then pretend you are the planet Mercury . Run around the tree as fast as you can . At the same time , try to spin one and a half ...
Describes the characteristics of the two planets closest to the sun and their relationship to the earth.
Mercury is one of only two planets in the solar system without a moon or moons. Some scientists believe that Mercury was once Venus's moon. Learn more in Mercury: The Swift Planet, one of the titles in The Solar System series.