... are being disputed as to whether or not they are satellites of Saturn. When it is nighttime sky, Saturn is easily visible to the naked eye. Being the seventh planet from the Sun, it takes about 84 years for Uranus to make one orbit around the sun. While Uranus is the ... composed of rock and various ices. The apparent blue color of Uranus is the result of absorption or red light by methane in the upper atmosphere (Baum 108). Uranus is barely visible to the naked eye on a very clear night, but is easily spotted with binoculars. After the discovery of Uranus, it ... of Uranus: various ice...

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

... touches their sunburn it goes white, it is because the touch pushes away all the red capillaries and the area turns white, then the reddish color comes back when the capillaries refill themselves with the red blood cells. Sunscreen can be used to protect the skin from harmful effects of the ... medication during tanning may be affected by any side effect of that medication. Tanning beds have also been linked to various eye problems such as damaged retina or cornea. The eye usually heals itself but is a very painful process. Many people also suffer of night blindness due to tanning beds....

• Word Count: 2931
• Approx Pages: 12
• Grade Level: High School

... atmospheric circulation system is less complex than Earth's because there are no bodies of water on Mars to influence wind patterns. Mars has its distinctive red color due to the oxidizing atmosphere that contains some material that produces iron in the surface ground, making it rusty. Temperature on Mars Mars is ... storm on Mars is called a dust devil. These are swirling circles of dust that are like mini tornadoes with a calm center similar to the eye of a hurricane ("Planet Storm"). Dust devils move across the land and pick up dust. They form during the day when the ground surface he...

• Word Count: 4020
• Approx Pages: 16
• Has Bibliography
• Grade Level: High School

... subject that we human beings only could stare at, until the development of the telescope all astronomical observations were made with the eye. By using measuring instruments, astronomers documented the positions of the planets against the background of stars. In 1609 Galileo Galilei turned his ... 12 km - 1200 farther!" (ANGULAR RESOLUTION). Scientists distinguish the angular resolution by the least angle that can be recognized in an image. The human eye with 20/20 vision, the angular resolution is 1 arc minute, which is 1/60th of a degree. The HST is 1200 times sharper, which ... to 5...

• Word Count: 3931
• Approx Pages: 16

... left hand and swinging a club with his raised right arm ready to strike the charging Bull. Betelgeuse, one of the largest stars known, is the red star at the right shoulder. Bellatrix is at the left shoulder, and Rigel is at the left leg. Three bright stars in a straight line in ... The nebula, most of which is hidden behind gas clouds, located just below the three stars making the belt of the Orion Constellation. Its red glow is cause by light from the Trapezium and other stars illuminating a gigantic cloud of hot hydrogen about 10 light years across. There is enough ... pulsation. Th...

• Word Count: 5465
• Approx Pages: 22
• Has Bibliography
• Grade Level: High School

... the color of starlight. He believed that the wavelength of the light of a star that is moving away from us (Earth) would be lengthened which would make the light more red. The Doppler Effect does occur, but not in the way that Doppler described it. The typical velocity of a star traveling towards us is so much smaller than the velocity of ... causes a runaway green house effect and traps the heat inside. (D) Mars - When Mars is closest to Earth, it is easy to observe and can even be spotted by the naked eye. Polor caps make an obvious feature on Mars and they are very bright. Mars also ...

• Word Count: 3183
• Approx Pages: 13
• Grade Level: High School