Tour the solar system eight planets.

<P> Technology Channel (tech.) Message: </ P> <P> Mercury </ P> <P> closest to the sun is Mercury. .Mercury is the planet of the solar system's fastest sport. .Mercury is no water, no air, and the hottest up to 427 degrees Celsius, the coldest at minus 173 degrees. .</ P> <P> Venus </ P> <P> size and Earth-like Venus, has a strong atmosphere. .However, up to 460 degrees surface temperature, atmospheric pressure 90 times Earth's. .Venus and Mercury are the barren and desolate world. .</ P> <P> Earth </ P> <P> Earth is a beautiful blue planet in the solar system "paradise world." .78% of the Earth's atmosphere is nitrogen, 21% oxygen, the remaining 1% were other ingredients. .</ P> <P> Mars </ P> <P> Mars and Earth as there are high plains, but also across the ocean and rivers, now dry bed of leaves. .Scientists hope to find life on Mars traces of the surface. .</ P> <P> Jupiter </ P> <P> Jupiter is the solar system, "nine planets" in the largest planet. .Has a strong atmosphere, hydrogen, helium-based. .Jupiter's poles, found very similar with the aurora on Earth. .</ P> <P> Saturn </ P> <P> Saturn is the planet of the solar system's most beautiful, the surface light yellow, has a beautiful aura. .Saturn's size and quality second only to Jupiter, the largest number of satellites in the solar system planets. .</ P> <P> Uranus </ P> <P> 1781 Uranus was discovered by British astronomer Herschel. .83% of the atmosphere of Uranus is hydrogen and 15% helium and 2% methane and small amounts of acetylene and hydrocarbons. .</ P> <P> Neptune </ P> <P> 1845 year and 1846, two young people in Britain and France, respectively, Adams and Urbain Le Verrier independently calculated by a gravitational influence on another planet, Uranus, Neptune, which is .. .</ P> </ p>.