The Sun is the most prominent feature in our solar system. It is the largest object and contains approximately 98% of the total solar system mass. One hundred and nine Earths would be required to fit across the Sun's disk, and its interior could hold over 1.3 million Earths. The Sun's outer visible layer is called the photosphere and has a temperature of 6,000°C (11,000°F). This layer has a mottled appearance due to the turbulent eruptions of energy at the surface.
Solar energy is created deep within the core of the Sun. It is here that the temperature (15,000,000° C; 27,000,000° F) and pressure (340 billion times Earth's air pressure at sea level) is so intense that nuclear reactions take place. This reaction causes four protons or hydrogen nuclei to fuse together to form one alpha particle or helium nucleus. The alpha particle is about .7 percent less massive than the four protons. The difference in mass is expelled as energy and is carried to the surface of the Sun, through a process known as convection, where it is released as light and heat. Energy generated in the Sun's core takes a million years to reach its surface. Every second 700 million tons of hydrogen are converted into helium ashes. In the process 5 million tons of pure energy is released; therefore, as time goes on the Sun is becoming lighter.
by Castlepaloma 12 years ago
Noah's Arc left behind most people and animalsWas that an Evil or a Good act?My thoughts is Safety first! Automatic I've would of thrown out life jackets or peaces of wood for all of God's creatures to be saved during the flood. If God made everything perfect, why would God have 95% of Land Animals...
by dishyum 13 years ago
# The Sun is 330,000 times larger than the Earth.# The moons of all other planets in the solar system are named after Greek gods, except for those of Uranus, which are named after Shakespearean characters.Got more?
by Rafini 7 years ago
My son thinks so, and now I'm beginning to think it could be true - has this theory already been considered? I mean, it's impossible to know what the sun is really made of...all we know for sure, is that its still burning. It could have a solid mass at its core....I'm thinking that when...
by jerami 14 years ago
Having a wondering about it moment. I don't have an answer. That black hole at the center of our universe may not exert its pull upon the earth as much as it does on our sun. Our sun revolves around it. So it does pull upon the sun. Would...
by athoa023 13 years ago
does solar energy emmit harmful pollutants?
by Brett Winn 12 years ago
What would you do if you won a hundred million dollars?
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