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Why is the earth always enshrouded in darkness and no light from the sun radiates the space between them, only the surface is illuminated? If a scale model were made i think it would demonstrate that light from the sun would be present but would also reveal somthing between the planets. After all we see the moon in day light and darkness. Ive never seen the earth in day light except from my point of view down here. mts |
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I'm copying the relevant portion of my response in the other thread:
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I say there is an invisible elf in my backyard. How do you prove that I am wrong? Disclaimer: Avatar is not an official NASA image and does not imply any specific interplanetary or interstellar capability. The Leif Ericson Cruiser |
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Oh, a question in return: Is there a conspiracy theory being advocated, or is this an astronomy question?
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I say there is an invisible elf in my backyard. How do you prove that I am wrong? Disclaimer: Avatar is not an official NASA image and does not imply any specific interplanetary or interstellar capability. The Leif Ericson Cruiser |
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honest question-logical answer given. However, it is assumed there is stuff out there be it satilites or rocks somthing. the media pertrays stuff out there. it seems like somthing would show up.
recently i have been questioning accepted teachings and one Q leads to another. pics often seem air brushed or not real. Needless to say i have little confidence in man accept for his ability to lie and oppress. thx 4 reply |
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It's all about scale. There is trillions of tons of matter out there, but it is spread over vast VAST volumes of space. Quote:
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thx 4 reply[/QUOTE]
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"The very powerful and the very stupid have one thing in common: They don't alter their views to fit the facts, they alter the facts to fit their views." The Doctor, Doctor Who: The Face of Evil. |
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WRT: The "airbrush" or seemingly fake photos, also keep in mind that the spectacular photos of nebulae and other astronomic phenomenon are typically displayed in false-color. Sometimes it's to represent the different gasses/elements that make up the objects, or the differing spectrum of photons emitted outside the visible light range. Sometimes it's purely for artistic purposes. The objects are indeed there; they just don't look like the photos to the naked eye.
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I'm like one of those idiot savants...well, except for the savant part. "In order to increase awareness of the homeless, security have been given binoculars." |
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http://en.wikipedia.org/wiki/Image:I...after_SMM1.jpg Many interesting objects are just beyond the limits of current equipment and can not be imaged clearly. Also, even when clear images are possible, very different physics are involved in the formation of nebulae and such. With photon pressure, heating from stars and collisions with other bodies of gas, self gravitation, shock waves, etc, and the enormous scales involved, things do not behave much like clouds in the sky. Speaking of which...take a close look at those sometimes, particularly around dawn or dusk. They can often look horribly fake, despite being quite certainly real (unless you feel like positing a conspiracy hiding the fact that the sky's a computer generated projection). |
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Also photos of nebulas are time exposures, capturing light over time which is too faint for your eye to see in real time. If you have access to a good telescope, get a look at Orion's sword where the famous nebula is. You've seen brilliant photos of it in glorious color, but live, in a telescope, it's just a faint gray cloud. Experts correct me if I'm wrong, but I think even if you were close enough for it to fill the sky, it would still be pale and gray. Also CMIIAW, but I think the famous Horsehead Nebula is scarcely visible at all in real time and can only be seen with a time exposure?
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The Horsehead nebula is infamously hard to see visually, but with a proper filter and a decent sized telescope, you can see it. Of course, it is easier in large telescopes, but there are reports of it being seen in surprisingly small telescopes. You are right that nebulae become dimmer and more diffuse when you get closer to them, I've never had a precise answer to whether you could actually see them up close though. You probably wouldn't be able to see color.
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You can't really tell the difference between drunken rambling and sober blogging. |
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What the Heck do you think Astronomers are looking at?! When you see the Moon, an asteroid- whatever- it's reflecting the light from the Sun. When you are standing in a room and the lights are on- do you SEE the light IN the air? Hello. You see whatever reflects the light. Quote:
![]() Speaking of reflections... ... |
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