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To: lbryce

What is “Dark Matter/Energy” ?

Why is it called “Dark” ?

Can they create this model without it ?


3 posted on 05/11/2014 12:19:02 PM PDT by Zeneta (Thoughts in time and out of season.)
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To: Zeneta

Tis ‘dark’ because we cannot observei it.


8 posted on 05/11/2014 12:34:16 PM PDT by Pikachu_Dad (Impeach Sen Quinn)
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To: Zeneta
Dark Matter gets that name because its interactions appear to be limited to gravity, and so far, no lab experiment has observed any of this "stuff." The supposed function of dark matter is to explain why galaxies appear to rotate as a unit. Our solar system, in contrast, has slower moving planets in the more distant orbits.

Dark Energy gets that name for a similar reason, no observation of it. It is invoked to explain why the expansion of the universe appears to be accelerating.

9 posted on 05/11/2014 12:35:35 PM PDT by Cboldt
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To: Zeneta
"What is “Dark Matter/Energy” ?"

They are phrases used to avoid the fact that the standard cosmological models don't conform to the actual data.

12 posted on 05/11/2014 12:49:35 PM PDT by circlecity
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To: Zeneta
NASA:All About Dark Energy, Dark Matter
22 posted on 05/11/2014 1:14:48 PM PDT by lbryce (Barack Hussein Obama:The Worst is Yet to Come)
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To: Zeneta
What is “Dark Matter/Energy” ?

I've often wondered about that myself. You see magnets interacting with iron from afar. You see objects attracting each other in empty space. Supposedly it's caused by invisible waves. But what if it's waves riding particles of so-called dark matter? We can't see it. We can't detect it. We're just too dumb at this point. I just don't see how a wave of energy like gravity can act across completely empty space, without a medium, such as you find with sound waves using air as a medium. Scientists used to say atoms were the smallest indivisible particle. Then electrons, protons and later neutrons. Then they discovered those were divisible into quarks, and lots of different quarks there are. I think we're just too dumb to see really tiny particles that make up dark matter.

84 posted on 05/11/2014 4:03:52 PM PDT by roadcat
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