The sun holds the planets in their orbits, makes life possible on Earth and converts hydrogen into helium. The sun is a large ball of gas that is undergoing a thermonuclear reaction, which enables it to bathe the solar s... More »

The word sun comes from the Old English word "sunne," which derives from the Proto-Germanic word "sunnon." There are many cognates in other languages such as the Dutch word "zon" and the German "sonne," but no one knows ... More »

If the sun were to disappear suddenly, observers on Earth would not know that anything had happened for the first 8 1/2 minutes. The daylight side of the planet would suddenly turn dark and the Earth would begin moving i... More »

Solar eclipses are rare because even though the moon orbits the Earth once a month, it requires a very exact alignment between the Earth, sun and moon to create a solar eclipse. Even when the alignment occurs, the eclips... More »

Relative to its planets, the sun is actually a stationary body, but it appears to move due to Earth's rotation. However, it is important to recognize that nothing is ever truly stationary. More »

The majority of life on Earth could not survive if the sun died, according to Popular Science. However, some micro-organisms could survive and thrive in a post-sun existence. With no sun, the Earth may fly off into space... More »

www.reference.com Science Astronomy Our Sun

Light is necessary for the survival of life on Earth, as almost all energy used by life is derived from the sun. Plants and algae use light energy in photosynthesis, which provides usable chemical energy for heterotrophi... More »