For an answer to your specific question about stars see other answers above.
In general scientists do make guesses, they look at the evidence they have before them and then make an educated guess at what they think is happening. Sometimes the guess will be wrong, for example other evidence will come in that is found not to fit the theory. Sometimes it is found that the theory is completely wrong and it is discarded, other times the theory is on the right track and only refinements need to be made. Science is not a static subject it is envolving and taking into account new data all the time.
2006-12-27 02:13:58
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answer #1
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answered by DazerUK 2
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Before making such negative statements about scientific facts you should learn more about the subject at hand, in this case how science has determined not only that stars are "burning" balls of gas but what the temperatures are, what elements they're made of, how long their lifetimes are, and how they will end their lives. Also, when disagreeing with some scientific fact, your credibility would be increased if you offered some other more plausible theory based on research and observations.
2006-12-26 19:25:18
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answer #2
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answered by Chug-a-Lug 7
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When electrons of an element become "excited" through some sort of energy gain (for example, heating), they rise up in principal energy levels, and as they fall back to their "ground state" from cooling, they emit colors. Each element emits a different pattern of colors, and the detection and analysis of these colors is called "spectroscopy." They can easily determine which elements are present in the Sun through this method. This is an example of our not being present at a location, yet still being able to prove something. There are many methods that serve similar purposes. The analysis of the different wavelengths of light or gravitational lensing are good examples.
2006-12-26 17:48:03
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answer #3
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answered by antiprotium 1
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They can look at the sun, which is a medium-sized star, and see what the purpose of it is. The sun is a big burning ball of gas. Each star you see has its own solar system and each star "warms" the planets.
2006-12-26 17:35:55
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answer #4
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answered by arreed7 1
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Can you prove that a fire in a fireplace is really a fire without sticking your hand in it? Of course you can - how? The temperature. There are devices that can measure temperature at great distances, even those of stars (do you believe they are really far away?) In addition we can make analogy to our own star - the sun. Do you believe that is a fire (actually a nuclear fire)?
2006-12-26 17:38:07
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answer #5
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answered by kentucky 6
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Oh dear.
Obviously you know nothing about science. Your whole premise is false.
Please run a search on spectrometry.
Oh and they're not burning gas - they're undergoing nuclear fusion. Your ideas were disproved over a century ago.
2006-12-27 01:04:26
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answer #6
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answered by Anonymous
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Yes they can and have proved it. There's no guesswork involved in this matter. You don't have to physically be somewhere to prove something.
Oh and it's not "burning gas". Gas cannot burn without oxygen. It's nuclear fusion.
Are you a devout Christian? Just wondering.
2006-12-26 17:34:48
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answer #7
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answered by Anonymous
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When you have an education so that you understand all of the vocabulary and physics involved, then you will find that these facts have been proven. Other theories are just guesses
2006-12-26 17:53:50
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answer #8
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answered by Anonymous
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Spectrometry darling. One of these days when you dont know everything you might want to look it up.
2006-12-26 17:39:58
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answer #9
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answered by freshbliss 6
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They can prove it, using a spectrometer.
2006-12-26 17:32:56
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answer #10
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answered by Anonymous
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