There are many harmful health effects of the sun, including skin cancer. The sun puts off harmful ultraviolet rays that are considered carcinogens. More »

Moderate exposure to sunlight has health benefits, such as stimulating vitamin D production in the body, but too much sun exposure leads to serious effects, such as sunburn and skin cancer, according to the Australian In... More »

The sun produces light through a process of constant nuclear reaction in which atoms interact and produce high levels of energy. Human beings can feel the effects of this reaction as it produces both heat and light energ... More »

The sun will last approximately another five billion years, according to NASA in 2012. The sun's light and heat are generated by the burning, or fusing, of hydrogen gas into helium gas. More »

A solar eclipse occurs when the moon moves directly between the Earth and the sun. The moon's shadow travels over the surface of the Earth and blocks out the light from the sun seen on Earth. More »

www.reference.com Science Astronomy

Saturn orbits the sun in approximately 29.7 Earth years. It orbits the sun in an elliptical path, just as all of the planets in the solar system do. More »

The sun and planets follow the ecliptic, an imaginary plane in the celestial sphere tilted approximately 23.5 degrees relative to the celestial equator. Earthbound observers see the sun and planets move along the eclipti... More »