There are many harmful health effects of the sun, including skin cancer. The sun puts off harmful ultraviolet rays that are considered carcinogens.Know More
Exposure to ultraviolet rays greatly increases a person's risk of skin cancer. According to the United States Environmental Protection Agency, the majority of skin cancers can be prevented by limiting exposure to the sun. Protecting the skin outdoors also goes a long way in preventing skin cancer. People should wear clothing that covers the skin or use a quality sunscreen before heading outdoors.
Other harmful health effects of sun exposure include eye damage and skin damage. People exposed to the ultraviolet rays of the sun are more likely to develop cataracts, which in turn causes vision loss. Exposure to the sun can also cause skin to thicken around the eyes or increase the chances of eye-related skin cancers. Skin damage occurs when a person is continuously exposed to the sun without protection by causing premature aging. The sun can also cause the skin to develop actinic keratoses, which are dark skin growths.
The EPA website also states that a suppressed immune system is also a harmful effect of the sun. When continuously exposed to UV rays, the body loses some of its ability to fight off infections.Learn more about Astronomy
Copernicus believed that the planets in the solar system revolved around the sun, instead of believing that the Earth was the center of the solar system. His model included the position of the Earth and retrograde revolutions.Full Answer >
According to NASA, modern astronomers’ tools include advanced telescopes capable of studying light reflected from the sun, moon, planets, comets and stars. Radio telescopes are utilized in the study of radio waves, while space-borne gamma ray telescopes aid in the study of gamma rays.Full Answer >
The moon has phases with distinct appearances because it is constantly rotating around the Earth and being illuminated by the sun at different angles. The most common phases are the new moon, first quarter, full moon and last quarter.Full Answer >
The Earth's path around the sun is called its orbit. It takes one year, or 365 days, for the Earth to complete one orbit. It does this orbit at an average distance of 93 million miles from the sun.Full Answer >