Dark energy confirmed as constant presence

[TheMojoPin]

This "science" thing confuses and frightens me, but me likee pretty pictures!

http://msnbcmedia.msn.com/j/msnbc/Components/Photos/020420/040220_darkenergy_hmed12p.hmedium.jpg
These are Hubble images of three of the most distant supernovae known. By tracking these exploding stars, astronomers can trace the expansion rate of the universe, and determine how it is affected by dark energy.

Universe has at least 30 billion years left, scientists say (http://www.msnbc.msn.com/id/4327735/)

My mom says I'M not a "mysterious, repulsive force."

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2% << December boys got it BAD >> "You might tell some lies about the good times we've had/But I've kissed your mother twice...and now I'm working on your dad..."

[A.J.]

Do you have any pictures of "Champagne Supernovae"?

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A Skidmark production.

Red Sox Nation

[Heavy]

Complete waste of money. MAYBE its important to know how much time is left for us, but anything beyond that is money down the drain. I'm interested in all this shit, but I still know all information coming from this provides nothing for us but a topic of discussion, and even that is for a small % of the population. We all know this planet will be barren in a few hundred years, tops.

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A proportionate amount of props are equally distributed to my nigga's Fluff, Alexxis, CanOfSoup15, WWFallon and Katylina
HORDE KING FOREVER!!!
ORACLE NEVER!!!

[TheMojoPin]

You see a dead world, I see an Earth without Wadd.

Sometimes the glass is half empty.

Sometimes it's half full of a delicious, delicious nectar of the gods.

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2% << December boys got it BAD >> "You might tell some lies about the good times we've had/But I've kissed your mother twice...and now I'm working on your dad..."

[reeshy]

Is Wadd going somewhere? If so, please write when you get work!!!!

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[Snoogans]

Complete waste of money. MAYBE its important to know how much time is left for us, but anything beyond that is money down the drain


riiiiight, and of course, the US as a government would NEVER do anything to waste money

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Thanks monsterone Giants better trade up for Fitzgerald
Rollin down the Street, Smokin Endo, sippin on Gin & Juice Snoogans 1, Monitor 0

[MizzleTizzle]

Well I dont get it all either but,

The star that goes supernova, when this happens, can outshine the galaxy it's in, that's how huge an event a supernova is. So we can see these very distant galaxies, and when this type of `known' supernova occurs, we can compare how bright that type of star `should' be compared to how bright it is, and use that as a guesstimate as to how distant it is.

Because Hubble discovered that all the galaxies we see are moving away from each other; an expanding universe, so the question is begged, why the expansion? Einstein wasn't too keen on the idea, he liked a `steady-state' theory, where the universe just always exists as it is. But an expanding universe? What happens? Will it all expand forever and die as a mist of particles and energy? Or is there enough mass in the universe so that gravity starts pulling everything back together eventually ending up in a `Big Crunch?' Some say the universe may be a series of expansions and contractions: Big Bang, Big Crunch, etc. an oscillating universe.

But watching the behaviors and motions of these distant galaxies yielded some real shock a while back; the expansion didn't seem to be slowing down, but seem to be *accelerating*, something that only some energy could be doing. What's making everything fly apart?

Well, we know we can't find most of the matter in these galaxies, even though we surmise it's there from their motions. So if there is `dark matter' that we can't detect, maybe dark energy too. This would seem a step towards confirmation. For me, it's a bit early for 'confirmed', as cosmology has been put on it's head so many times in the last decade. Guth Inflationary Theory was so good [some still agree] they thought they had it, an actual explanation as to the nature of the big bang, or as guth would have you know it, the Big-super amazing quick expansion, which is quite different then an explosion, a poor analogy to the big bang at best.

Which dovetails nicely with an age-old cosmological Q: Is there another type of gravity entirely? One that repels, as opposed to attracts. Doesn't seem so far-fetched since we have anti-matter.


http://members.aol.com/miketeachr/trilobite

[Johnathan H Christ]

Complete waste of money.



and welfare isnt?

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SHUT YOUR GODDAMN MANPLEASER
"his very conception was an act of animosity, why shouldnt his entire life be one as well?"

[Tall_James]

Dark energy confirmed as constant presence

http://www.internationalhero.co.uk/darth.jpg
"Me likee the dark energy."


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Why am I always on a plane or a fast train
Oh what a world my parents gave me

[Furtherman]

I love this stuff as well. Constantly reading up on it.



What happens? Will it all expand forever and die as a mist of particles and energy? Or is there enough mass in the universe so that gravity starts pulling everything back together eventually ending up in a `Big Crunch?' Some say the universe may be a series of expansions and contractions: Big Bang, Big Crunch, etc. an oscillating universe.


Mizzle, I just read this the other day - a new theory: The Big Rip.

From Space, a New View of Doomsday (http://www.nytimes.com/2004/02/17/science/space/17DARK.html)

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...with thanks to JustJon

[MizzleTizzle]

Wonderful article. How anyone finds cosmology, the study of the most ultimate questions; the origin, nature and fate of the universe boring? Well...

Anyway the article makes a great point; it seems the more counter-intuitive a hypothesis may seem at first, the better chance it has in the future.

We grow up in a real world. And then we if we study physics, we find so much of what the world runs against logic, or our sense. The discoveries such as these are the most amazing; they run so counter-intuitive as to defy explanation. They border on absurdity, and then, poof! it fits.

Or it doesn't, as they mentioned Guth's inflation theory [Guth explained a way the universe could expand so fast without ripping itself apart by the energy needed for such an expansion] sounded perfect at the time. Consilience, even congruence, was argued. But...

Anyway, looks like another golden age for astronomy. Nice!

Why PBS or someone isnt replaying to Sagan COSMOS Series is beyond me. It's out on DVD, but not advertised so well. There isn't a better series on the history of science, qnd astronomy, and there's a whole chapter on Cosmology.

The Hubble is good. Much better is available. We should develop it. Now. Don't worry, astronomy haters, much of the bill for this has been footed by amateurs [who often have made the big discoveries] and donations to groups like The Planetary Society.

Hey Membership has its rewards. My name [with a zillion others] is on a tiny chip on the last Martian Rover [Sojourner]. Sitting on Mars. So I got dat goin' for me, which is nice...

PS: You guys do know you can make your computer screensaver do data crunching for signs of ET intelligence from the Aricebo Dish, yes?

Link Here: Go Find Aliens!! (http://setiathome.ssl.berkeley.edu/index.html)

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[reeshy]

How anyone finds cosmology, the study of the most ultimate questions; the origin, nature and fate of the universe boring?


My sentiments exactly, Mike!!! I went out with a chick who had recently graduated from a Cosmology College and God....the things that she could do with that hair blower!!!!!!!!

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[Furtherman]

Hopefully, we'll have a spring comet show!!

I felt privledged to see Halley's in 1986 and most visible comets visible since then, especially the one that flew by in 1997. I forget the name, but watching it progress every night was great.

Pair of Comets Set for Spring Sky Show (http://www.space.com/spacewatch/comets_visible_040225.html)

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...with thanks to JustJon