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Displaying 1—10 of 1000 matches for query "23._How_important_is_the_Sun" retrieved in 0.020 sec with these stats:
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... 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 ...
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 Moon or Mars rovers. It is an important fact that the farther away a robot has to travel, the lighter it should be. The lighter something is, the cheaper it is to send into space. The smallest is the American rover Sojourner, launched to Mars in 1997. It weighed only 23 pounds.
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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 surface temperature of the Sun is about 5800° Kelvin (K) or over 10,000° F. As one gets into the corona of the Sun, the temperatures can reach many millions of degrees K The Kelvin temperature ... /For%20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - THE SUN
... the atmosphere of a star called the Sun. The Sun bathes the entire solar system with a volatile mix of highly energized particles called the solar wind, and the Earth' s magnetosphere helps protect the inhabitants of Earth from the ... the Sun's atmosphere begins to end. We believe the two spacecraft will cross this outer boundary layer within another decade to become the first human spacecraft to ever truly sense what interstellar medium is ...
It is over 15,000,000° K or 27,000,000° F.
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Answer provided by Jim Zebrowski
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to ... /For%20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - THE SUN
... 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 ...
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
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
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