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The Sun The Romans called the sun Sol, which in English means sun. In ancient Greece, the sun was called Helios. Every planet in the solar system and Pluto rotate around the sun. The sun is not a planet and is actually a big star. The solar system is named after the scientific name for the sun, sol. The sun is definitely the largest thing in the solar system. The moon • 27 days, 7 hours, 43 minutes, 11.6 seconds to go all the way around the Earth and return to its starting position. • the Moon orbiting counterclockwise from west to east. • The Moon is 4.5 billion years old. The Earth • In astronomy mythology, her Greek name was Gaea. Earth was the mother of the mountains, valleys, streams and all other land formations. She was married to Uranus. • Earth is the only planet whose English name does not derive from Greek or Roman mythology. The name comes from Old English and Germanic language. There are, of course, hundreds of other names for the planet in other languages • astronomy mythology, her Greek name was Gaea. Earth was the mother of the mountains, valleys, streams and all other land formations. She was married to Uranus. Pluto Pluto is a dwarf planet. People have said it isn't a planet, it’s actually a dwarf planet. A dwarf planet orbits the sun like any other planet, except it’s smaller. It is so small it can’t clear other objects out of it’s path. Mercury • Mercury is the 8th biggest planet and is the closest planet to the sun. • Mercury has now been visited by two spacecraft, Mariner 10 and MESSENGER. Jupiter Jupiter was King of the Roman Gods and the patron of the Roman state. To the ancient Greeks, he was known as Zeus, ruler of the Greek Gods and Mount Olympus. Jupiter is so big you could squeeze 1,000 earths in it. The swirls and bands you see around Jupiter are actually the top of clouds. Venus Venus is the Roman goddess of love and beauty. She is known as Aphrodite in Greek mythology. The planet is so named probably because it is the brightest of the planets known to the ancients. Venus is the second planet from the Sun, and the sixth largest of all the nine planets. Saturn Saturn is the sixth planet from the Sun, and the second largest of the nine planets. Saturn's rings, unlike the rings of the other gas planets, are very bright. When viewing Saturn through a small telescope, it appears a bit "squished." This is because its structure isn't very rigid (it's mostly gas and liquid), and it becomes slightly "compressed" as it spins very quickly. neptune • In Roman mythology Neptune was the god of the Sea. He is known as Poseidon in Greek mythology. The planet was probably named after the sea gods because of its deep blue colour. Neptune also has rings. The Voyager 2 spacecraft showed scientists that Neptune indeed has complete rings with bright clumps. Like Uranus and Jupiter, Neptune's rings are very dark and very faint. Scientists still haven't figured out what they are made of yet. Uranus Uranus is the seventh planet from the Sun and the third largest of the nine planets (in size). Uranus is larger in size but smaller in weight than Neptune. Uranus has been visited by only one spacecraft, Voyager 2 on Jan 24 1986. mars Mars is sometimes referred to as the "Red Planet.” the largest mountain in the Solar System! Olympus Mons rises a full 24 km (78,000 ft.). On Aug 6, 1996, David McKay announced the first identification of organic compounds in a Martian meteorite. It is suggested this may be evidence of ancient Martian life. This are just some of the basics about space! There are so many questions to be answered!