How Many Planets Are There in the Solar System?
According to the most widely accepted definition of a planet, there are eight planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto, Eris, Haumea, Makemake, and Ceres are dwarf planets. But, there are a host of other bodies in the solar system. Here is a look at what a planet is, why Pluto