The sun's mass is estimated to be 1.989 times 10E30 kilograms, about the equivalent of 333,000 Earths, and has a diameter of about 864,938 miles. About 99.8 percent of the entire mass of the solar system is contained within the sun.Know More
The sun is a relatively small star in the Milky Way Galaxy. It is classified as a yellow dwarf star, also called a G dwarf star, and it is one of about 10 billion similar stars in the galaxy. Red giant stars, such as Betelgeuse, are much more voluminous.
Astronomers think that in about 5 billion years, the sun will use up all its hydrogen and become a red giant itself. This transformation will destroy all the inner solar system planets, including the Earth.Learn more about Our Sun
The sun is hot due to the nuclear fusion process taking place within it, which is called stellar nucleosynthesis. The enormous amount of energy released by this process, nearly 383 billion megawatts multiplied by one billion, produces the sun's incredible heat.Full Answer >
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 heterotrophic organisms. In addition, without light, the Earth would be completely cold and dark, as even the moon gets its glow from reflecting the sun.Full Answer >
Dictionary.com defines the adjective "solar" as "of or pertaining to the sun." A second and less utilized definition is "a private or upper chamber in a medieval English house."Full Answer >
The sun is approximately 4.6 billion years old. It was formed when part of an immense molecular cloud underwent a gravitational collapse. The sun is a ball of gas, consisting of 92.1 percent hydrogen and 7.8 percent helium.Full Answer >