... 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

... 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
• Approx Pages: 2
• 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
• Approx Pages: 1
• Grade Level: High School