... This makes Venus even hotter than Mercury. This high temperature is primarily due to a run away green house effect caused by the heavy atmosphere of carbon dioxide. Date from Magellan's imaging radar shows that Venus probably once had large amount of water like Earth but it all boiled away this make it quite a dry planet now (Venus 2). Recent findings indicate Venus is ... 71 percent of the Earth's surface is water, Earth is the only planet on which water can exist in liquid form on the surface (Earth 3). For this reason, Earth is the only planet where life can exist naturally. Called Lu...

• Word Count: 2531
• Approx Pages: 10
• Has Bibliography
• Grade Level: High School

... about 75% hydrogen and 25% helium by mass with traces of methane, water, ammonia, and "rock"(Jupiter"). This is close to the composition of the primordial Solar Nebula from which the entire solar system was formed. Atmosphere The atmosphere of Jupiter is composed mainly of hydrogen, helium, methane, and ammonia. It appears that the atmosphere is divided into a number of light and dark bands, which are parallel to its equator, and ... and Thebe (see Table 2). The main and halo rings consist of dust ejected from the moons Metis, Adrastea, and other unobserved satellites as the result of h...

• Word Count: 1212
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School

... back show whirl winds and clouds in a deep haze. The clouds that are seen when looking at Saturn are just the top layer of a very deep layer that covers the center of liquid hydrogen. The different color gases produce belts of streak-like swirls surrounding the planet. The swirls are a series of storms on the planet's surface. The atmosphere of Saturn has weak bonds and there is a high haze, ... perhaps composed of crystals of ammonia ice, above the clouds. Apparent high-speed jet streams were ... by ice from the interior that has moved to the surface. The density of Rhea suggests that...

• Word Count: 3775
• Approx Pages: 15
• Has Bibliography
• Grade Level: High School

... is just a big star though, so it is really only made up of the 9 planets and stars. Pluto is also the coldest planet, that is because it is the farthest from the sun than all the rest of the planets, and Mercury is the hottest planet because it is the closest to the sun. There are a few planets that have rings around them. Saturn has 2 large rings around it that are ... know this one, but it is the only planet names after a Greek god. Earth is also the only planet that has bodies of water like the ocean and rivers. People have studied the other planets and have not found life on any of ...

• Word Count: 520
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• Grade Level: High School

... . miles from the sun. It takes Uranus eighty four years to circle the sun once. Uranus lies on it's side and it is thirty one thousand miles across. Uranus has fifteen moons. Now I"m going to answer my questions. Uranus contains mostly rock and water, with hydrogen and helium, and trace amounts of methane in its dense atmosphere. The blue-green color of this planet comes ... from the methane gas present in Uranus's cold clear atmosphere. Uranus probably has a small rocky core smaller than Earths with a radius no ... larger than 1240 miles. The cores temperature is about 12,000 degrees f...

• Word Count: 265
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• Grade Level: High School

... Saturn Saturn is one of the most interesting planets in the solar system. It is the sixth planet in the solar system, and is most famous for its stunning array of rings. It is a very easy planet to pick out in the sky because it is one of the brightest lights in the shy. It also has a very faint greenish color that makes it stand out from the rest of the objects in the sky ("Astronomy ... for Kids"). Saturn is the second largest planet in the solar system, Jupiter being the only planet that is bigger. It also has at least eighteen moons, more ... ) across and 10 kilometers (6 miles) deep...

• Word Count: 3072
• Approx Pages: 12
• Has Bibliography
• Grade Level: High School