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(Science Daily)   Dust in the cosmic wind   (sciencedaily.com) divider line 33
    More: Interesting, Gone Tomorrow, Herschel Space Observatory, Gemini Observatory, rocky planet, asteroid belt, infrared telescope, space observatory, Spitzer Space Telescope  
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3188 clicks; posted to Geek » on 06 Jul 2012 at 1:49 AM (2 years ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2012-07-05 09:26:21 PM  
Can't see the dust anymore? Have they tried looking through an amber spyglass?

www.bookstellyouwhy.com
 
2012-07-05 09:36:01 PM  
blog.clayburngriffin.com

Cosmic dust. Wind. Dude.
 
2012-07-05 10:11:22 PM  
This is actually pretty cool...
We keep hearing about cosmic time scales and such and here in 2 years this system has totally transformed.
 
2012-07-05 10:11:52 PM  
images.tvrage.com
 
2012-07-05 10:49:55 PM  
files.abovetopsecret.com
 
2012-07-05 11:29:33 PM  
upload.wikimedia.org

I got this.
 
2012-07-05 11:54:16 PM  

sno man: This is actually pretty cool...
We keep hearing about cosmic time scales and such and here in 2 years this system has totally transformed.


Who knows?
 
2012-07-06 12:06:57 AM  

doglover: sno man: This is actually pretty cool...
We keep hearing about cosmic time scales and such and here in 2 years this system has totally transformed.

Who knows?


I'm going out on a limb here... the guys that published the paper this article talks about?
 
2012-07-06 02:08:22 AM  
The dust just vanished, eh?

i49.tinypic.com
 
2012-07-06 02:20:58 AM  

maxheck: The dust just vanished, eh?

[i49.tinypic.com image 390x295]


Yup, that is what I was looking for. Good jorb.
 
2012-07-06 03:25:54 AM  
Bill & Ted? Check.
Alien Guy? Check.
Spaceballs vacuum? Check.

Turn out the lights folks, I think this thread is done.
 
2012-07-06 03:44:32 AM  

sno man: doglover: sno man: This is actually pretty cool...
We keep hearing about cosmic time scales and such and here in 2 years this system has totally transformed.

Who knows?

I'm going out on a limb here... the guys that published the paper this article talks about?


Did you read the article? He don't know shiat from shinola.

Basically, astronomy is one of those sciences where nearly every observation is new. This is despite the fact it's the oldest science by a long shot. There's simply too much shiat out there to have observed much of anything yet.
 
2012-07-06 03:45:52 AM  
I blame the Higgs boson.
 
2012-07-06 03:51:15 AM  
Someone was building a ringworld?
 
2012-07-06 04:25:29 AM  
No more "dusty in here" excuses then. Womp womp.
 
2012-07-06 04:35:44 AM  

sno man: This is actually pretty cool...
We keep hearing about cosmic time scales and such and here in 2 years this system has totally transformed.



If you want to see something really neat on a human timescale check out
the blob of gas falling towards our galaxy's supermassive black hole
. Starting at 0:48 in the video in the article, that's actual infrared footage taken over the last few years, not an animation!

Also, at 1:04 , when the images rewind back to 2003 and then 2002, take a look at what I think is a star's image getting lensed as it passes behind the black hole, a little above and to the right of the red circle marking the gas cloud.

The sh;t will hit the fan cloud is due to hit the black hole's accretion disk in 2013.

/I tried submitting it, but it got redlit :/
//I thought it was pretty awesome
///Huh. As I preview this, I'm not sure why Fark is putting a br tag before the link
////as there is no line return in my comment text to merit it.
//Perhaps Fark prefers links with long description to not be word-wrapped?
//I don't see the purpose of that, though
 
2012-07-06 04:38:08 AM  
...aaand fark truncated my slashies once they got past four in a row. Weird.
 
2012-07-06 04:51:47 AM  
Perhaps the dust cloud just got cold?
 
2012-07-06 05:33:06 AM  
Don't hang on, nothing lasts forever but the earth and sky
It slips away, and all your money won't another minute buy.
Dust in the wind, all we are is dust in the wind


Great song
 
2012-07-06 06:03:44 AM  

Hardy-r-r: Don't hang on, nothing lasts forever but the earth and sky
It slips away, and all your money won't another minute buy.
Dust in the wind, all we are is dust in the wind


Great song


Yeah I love the Who.
 
2012-07-06 07:15:14 AM  

Hardy-r-r: Don't hang on, nothing lasts forever but the earth and sky
It slips away, and all your money won't another minute buy.
Dust in the wind, all we are is dust in the wind

Great song



I really like the part where they go

We are the children grew too fast
We are the dust of the future past
We raise our voices to the night
Crying to heaven!
And will our voices be heard?
Or will they break like the wind?

j/k ;)
 
2012-07-06 07:58:25 AM  
I'm obviously a child of Science Fiction because my first thought was it sounds like there are a bunch of Von Neumann machines at work...
 
2012-07-06 09:48:18 AM  

teardrop: Someone was building a ringworld?


I see my presence here is not needed.

/tips hat to teardrop
 
2012-07-06 10:14:23 AM  

ArkAngel: [blog.clayburngriffin.com image 568x326]

Cosmic dust. Wind. Dude.


Came for this.
 
2012-07-06 10:37:07 AM  

Isildur: If you want to see something really neat on a human timescale check out
the blob of gas falling towards our galaxy's supermassive black hole. Starting at 0:48 in the video in the article, that's actual infrared footage taken over the last few years, not an animation!

Also, at 1:04 , when the images rewind back to 2003 and then 2002, take a look at what I think is a star's image getting lensed as it passes behind the black hole, a little above and to the right of the red circle marking the gas cloud.

The sh;t will hit the fan cloud is due to hit the black hole's accretion disk in 2013.

/I tried submitting it, but it got redlit :/
//I thought it was pretty awesome
///Huh. As I preview this, I'm not sure why Fark is putting a br tag before the link
////as there is no line return in my comment text to merit it.
//Perhaps Fark prefers links with long description to not be word-wrapped?
//I don't see the purpose of that, though


That is pretty awesome. Seeing stuff like that in a human timescale, when most things in astronomy are over many thoussands of years, is pretty awesome
 
2012-07-06 10:49:39 AM  

teardrop: Someone was building a ringworld?


Nah, a ring-world would block a substantial portion of the star's light, a dimming we should notice.
This has to be a disc-world.

Unless we're viewing it from way off the ecliptic plane I supposed.
 
2012-07-06 10:50:10 AM  

Benny_Hill: I'm obviously a child of Science Fiction because my first thought was it sounds like there are a bunch of Von Neumann machines at work...



The thought occurred to me. Kinda disturbing.


I wonder, though if it could be something like the warm dust disk being very uniformly flat. Maybe we were already seeing it almost edge on, and now we're seeing it exactly edge on? Visible light from the star might not make it far along that dusty plane, and not much infrared might bounce it's way (get absorbed and re-emited) all the way through the disk to the colder outer edge of the disk and still escape traveling along that plane. If the disk is very flat and we were already seeing it nearly edge on, there wouldn't be much observed change in star brightness due to the transiting disk.

Then again, they may have already done spectrography to see if the disk was inclined to us. (Like a cop radar, but just just emissive. If it's inclined to us, some of the infrared would be blue-shifted very very minutely towards visible, and some of it shifted very very slightly red-shifted toward radio, because half the disc would be moving toward us and half away.)
 
2012-07-06 12:25:44 PM  

freidog: teardrop: Someone was building a ringworld?

Nah, a ring-world would block a substantial portion of the star's light, a dimming we should notice. This has to be a disc-world. Unless we're viewing it from way off the ecliptic plane I supposed.


Exactly. Think about it...we would never have been able to see the dust disk had its ecliptic plane NOT been offset to our line-of-sight.

/still going with a massive Cziltang Brone that gobbled up the dust cloud to make a ringworld
//how else but as dust could it inject the material at a more or less constant and useful rate?
///Cziltang Brone
 
2012-07-06 01:33:13 PM  

Benny_Hill: I'm obviously a child of Science Fiction because my first thought was it sounds like there are a bunch of Von Neumann machines at work...


My first thought too. Only...ethical Von Neumann machines. They don't eat planets, just dust and rocks of a smallish size so as to not wipe out any inhabitants.

/One can hope they'd be programmed to not eat planets, anyhow
//Hope, since there's now a wave of them headed for us!
 
2012-07-06 01:51:37 PM  

fusillade762: Bill & Ted? Check.
Alien Guy? Check.
Spaceballs vacuum? Check.

Turn out the lights folks, I think this thread is done.


Just a minute - it still needs Mantrid

upload.wikimedia.org

Okay, done.
 
2012-07-06 02:27:40 PM  

Choestoe: Benny_Hill: I'm obviously a child of Science Fiction because my first thought was it sounds like there are a bunch of Von Neumann machines at work...

My first thought too. Only...ethical Von Neumann machines. They don't eat planets, just dust and rocks of a smallish size so as to not wipe out any inhabitants.

/One can hope they'd be programmed to not eat planets, anyhow
//Hope, since there's now a wave of them headed for us!



In billions of years, it need only take "ethical" VNMs once to mutate (through some incredibly-unlikely-to-happen-at-any-particular-time instruction mis-transcription), and everyone could suddenly have a serious problem...
 
2012-07-06 03:14:43 PM  
Looked pretty ethical
www.jeffbots.com
/now it's over
 
2012-07-08 01:50:38 AM  

LewDux: Looked pretty ethical
[www.jeffbots.com image 550x367]
/now it's over


Hah, I should rewatch that sometime. I don't think I've seen that since it was in theaters.
 
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