One rhyme to remember the planets is "Amazing Mercury is closest to the Sun, Hot, hot Venus is the second one, Earth comes third; it’s not too hot, Freezing Mars awaits an astronaut, Jupiter is bigger than all the rest, Sixth comes Saturn, its rings look best, Uranus and Neptune are big gas balls, Tiny Pluto is the last planet of all." As well as using rhymes to remember the order of the planets, there are also a good selection of mnemonics available.
"My Very Educated Mother Just Showed Us Nine Planets" uses the first letter of each planet, replacing the names with words to help remember the order of the planets. It does of course include Pluto, a dwarf planet that has been removed from the roster of official planets. A mnemonic to remember the planets without Pluto is "My Very Eager Mother Just Served Us Nachos."Learn More
Mercury, Venus, Mars, Jupiter and Saturn have been known since prehistory. According to NASA, only two non-dwarf planets in the solar system have official discoverers and dates of discovery. These are Uranus and Neptune. Other worlds, such as moons and dwarf planets, were also discovered after the invention of telescopes.Full Answer >
In this solar system, Mercury and Venus have no moons. Mercury is the smallest planet in the solar system and only slightly larger than Earth's moon. It is the closest planet to the Sun. Venus is the second closest planet to the Sun and is slightly smaller than Earth.Full Answer >
The eight described planets all orbit the Sun at different distances; Mercury is the closest planet to the sun, followed by Venus, then Earth, Mars, Jupiter, Saturn, Uranus and Neptune. The distances of the planets are normally measured in kilometers, because scientists use metric measurements. However, scientists also use a unit called an “astronomical unit,” which is equal to the distance between Earth and the sun.Full Answer >
All four of the gas giant planets in the solar system have rings. These are Saturn, Jupiter, Neptune and Uranus. The rings of Saturn are so prominent that they can be seen with binoculars on clear nights. The rings of the other planets are much more faint.Full Answer >