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During our school time, we used to create a small acronym using the first letters of the 9 Planets of our solar system, which goes like this;
M VEM J SUN P
Mercury is the first planet from the Sun and the smallest in the Solar System. In English, it is named after the ancient Roman God Mercurius (Mercury), the God of Commerce and Communication, and the messenger of the Gods.
Venus is the second planet from the sun. It is a terrestrial planet and is the closest in mass and size to its orbital neighbor Earth. Venus is notable for having the densest atmosphere of the terrestrial planets, composed mostly of carbon dioxide with a thick, global sulfuric acid cloud cover.
Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being an Ocean World, the only one in the Solar System sustaining liquid surface water.
Mars is the fourth planet from the Sun. The surface of Mars is orange-red because it is covered in iron oxide dust, giving it the nickname "the Red Planet".
Jupiter is the 5th planet from the Sun and the largest in the Solar System. A gas giant, Jupiter's mass is more than two and a half times that of all the other planets in the Solar System combined and slightly less than one-thousandth the mass of the Sun.
Saturn is the 6th planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius of about nine-and-a-half times that of Earth. It has only one-eighth the average density of Earth but is over 95 times more massive.
Uranus is the 7th planet from the Sun. It is a gaseous cyan-colored ice giant. Most of the planet is made of water, ammonia, and methane in a supercritical phase of matter, which astronomy calls "ice" or volatiles.
Neptune is the 8th and farthest known planet from the Sun. It is the fourth-largest planet in the Solar System by diameter, the third-most massive planet, and the densest giant planet. It is 17 times the mass of Earth and slightly more massive, but denser and smaller, than fellow ice giant Uranus.
Pluto is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It is the 9th largest and 10th most massive known object to directly orbit the Sun.
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