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Đăng vào lúc 09:28 25/11/2014 bởi Đỗ Thị Hải Yến

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Our solar system consists of an average star we call the Sun, the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn,Uranus, Neptune, and Pluto. It includes: the satellites of the planets; numerous comets, asteroids, and meteoroids; and the interplanetary medium. The Sun is the richest source of electromagnetic energy (mostly in the form of heat and light) in the solar system.

There are some planets in the solar system:

(Sao Thuỷ)- Mercury

Named for the messenger to the Roman gods, Mercury is the closest planet to the Sun and as a result, revolves around our star in the least amount of time.

(Sao Kim)– Venus

Venus, named for the Roman goddess of love, is known as Earth's "sister" planet because they are very near in size, mass and density. However, the similarities end there. Venus is the planet that approaches closest to Earth and can be the brightest object in the sky, next to the Sun and Moon.

(Trái Đất) – Earh

(Sao Hoả) - Mars

Mars, named for the Roman God of war was once thought to possess a highly organized civilisation. Much of this came about when the Italian astronomer Giovanni Schiaparelli thought he observed canali on the Martian surface. In English, canali means "channels" but was improperly translated to meaning "canals", which implied they might have been dug by intelligent life. In America, Percival Lowell set up an observatory to study Mars. Lowell's observations and his book, Mars and its Canals, written in 1906, fuelled the misconception that "intelligent life" existed on Mars. It is now known that the canali or canals do not exist, but were an effect of how the brain and eye work together. The Mariner spaceprobes and Viking landers found no evidence of life on Mars.

(Sao Mộc) – Jupiter

Jupiter, named for the King of the Roman Gods, is the fifth planet from the Sun and is by far the largest planet in the Solar System. The first telescopic observations of Jupiter were made by Galileo Galilei in the year 1610. With his small refracting telescope, Galileo discovered four of Jupiters' moons: Io, Callisto, Europa and Ganymede -commonly known as the Galilean satellites.

Sao Thổ - Saturn

Saturn, named for the Roman God of the Harvest, was the farthest known planet from the Sun until the discovery of Uranus in 1781. The second largest planet in the Solar System has an intricate ring system.

(Sao Thiên Vương) – Uranus

Uranus was discovered by Sir William Herschel in 1781. The seventh planet from the Sun is named after the Greek God, Ruler of the World. Uranus is so far from the Sun that it is almost 4 times the Sun-Jupiter distance. As a result, it takes about 84 "Earth years" to complete one orbit around the Sun.

)Sao Hải Vương) – Neptune

Neptune is named for the Roman God of the Sea. It is the first planet to be discovered by mathematical prediction. It was known at the time that something was causing a perturbation in the orbit of Uranus, quite possibly another planet. Independent calculations made by Urbain Leverrier and John Cough Adams led to its discovery in 1846 by J.G. Galle at the Berlin Observatory.


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