Our solar system has eight planets and one star: the Sun. The planets are (in order, from the Sun, outward): Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto was considered the ninth planet until August 2006, when the International Astronomical Union reclassified it as a "dwarf planet." A new mnemonic used to remember the planets in order is, "My Very Educated Mother Just Served Us Nachos."