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Displaying 1—10 of 1000 matches for query "08._Why_is_the_Sun_so_hot" retrieved in 0.023 sec with these stats:
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- "sun" found 6879 times in 4387 documents
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- "hot" found 872 times in 556 documents
The power produced by the conversion of hydrogen into helium in the core of the Sun, which is called fusion, replenishes all the heat and energy that the Sun gives off into space.
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Answer provided by Jim Zebrowski
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... is a measure of heat energy. In space there is no air so heat transports by radiation—for example, you feel warmth when you hold your hand near a red-hot stove. The Sun is the major source of heat in space. The Earth is also a major source of heat in space, since it reflects sunlight.
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Answer provided by Robert P. McCoy, Ph.D.
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The Sun is about 872,000 miles across. About 109 Earths could fit across the diameter of the Sun. Because the Sun is a ball of gas, it is slightly distorted and rotates faster at the center than at the poles. This makes it slightly oblate at the equator but for ...
... the Earth has a yearly orbit around the Sun, our Sun also orbits the center of our Milky Way Galaxy once every 230 million years. It is amazing to think about the fact that the last time our Sun passed through this area of the ...
No, the Sun is not a big red star. Actually, our Sun is a small yellow green star that is very stable and, as a result, it will have a long life over many billions ... /For%20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - THE SUN
The Sun is our nearest star and is composed of mostly hydrogen and helium. It is a giant ball of incandescent gas 872,000 miles in diameter, which gives off energy across the entire electromagnetic spectrum ... /For%20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - THE SUN
The core of the Sun has a density of 5.78 pounds per inch3, which is about ten times that of lead The fact that the Sun is 109 times the diameter of the Earth with a mass more than 300,000 times greater than the Earth provides all the gravity that it needs to crush the material in ...
The Sun is a stable, middle-aged star that has allowed our solar system to develop life on Earth over the last 4.6 billion years. It will last many more billions of years ... /For%20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - THE SUN
... lives by spewing the atoms of creation throughout our solar nebula neighborhood, which helped the local gas cloud to gravitationally collapse and form the star we call the Sun. At one time, the Universe was only hydrogen and helium. All other atoms from carbon to oxygen to silicon and iron were made within the fiery core ... . We are indeed "star stuff" and it is no wonder that we are struggling to take the first small steps back into space, to begin the exploration of what was once our home ...
... solar system and think of our galaxy, the Milky Way, it is so much more immense that we have to use different ways to describe distances. So we use light years. That sounds like a measurement of time, but it is not. It is a distance. A light year is about six million million miles, and the Milky Way is 100,000 light years across. We are about 20,000 light years from its edge.
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Answer provided by Derek Webber
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