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Dark Energy?

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16 years 4 months ago #64231 by dmolloy
Dark Energy? was created by dmolloy
I don't know about yee, but I can't get my head around "dark energy". Now I can understand dark matter after a fashion.......is that the stuff we know is there - to explain the behaviour of the universe we observe? is it that stuff that emits no light? am I nearly there :?

But....whats dark energy...can someone explain in 30 words or less what it is (or could be) - maybe we should have a competition for the brainist contributor to this forum who could achieve the above in plain english (I have looked it up not the net but can't make head-nor tails of it) ....or should I just go back to playing with my telescope... :(

signed, Declan

very perturbed
Co Laois

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16 years 4 months ago #64233 by Petermark
Replied by Petermark on topic Re: Dark Energy?

or should I just go back to playing with my telescope...


I think you should.

I have a suspicion that future Astronomers will say of the current generation:

"What were they smoking?"

Mark.
Anybody who says that Earthshine is reflected Sunshine is talking Moonshine.

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16 years 4 months ago #64242 by voyager
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Dark energy is the name we give the mystery force that's acting against gravity to speed up the expansion of the universe when it should otherwise be slowing down. We have no idea what it is really.

A little over 20 words but I presume it's still short enough?

Bart.

My Home Page - www.bartbusschots.ie

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16 years 4 months ago #64249 by dmolloy
Replied by dmolloy on topic Re: Dark Energy?
Thats a good answer Voyager, It's just that the bit I don't understand is why something with so profound an effect on the observable universe. is a mystery.

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16 years 4 months ago #64252 by Euronymous
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Thats a good answer Voyager, It's just that the bit I don't understand is why something with so profound an effect on the observable universe. is a mystery.


Well really because scientists are from earth, and are too intent on using earth as a comparison tool. They think that just because gravity takes place here and on other planets, that it should elsewhere. Yet dark energy goes against this so-called gravity. And it makes up more than 75% of the universe. If anything, gravity should be the mystery, not dark energy.

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16 years 4 months ago #64253 by dmolloy
Replied by dmolloy on topic Re: Dark Energy?
75% is a lot of nothing we can see, or not see. Gravity and it's effects can be seen - and tested. I don't understand the how scientists can say universe is expanding faster than it should - so there must be extra stuff we can't see and something acting upon it.

it's all terribly perplexing :?

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