Comments on: There's A lot of Dust Out There in the Universe http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/ Space and astronomy news Sat, 21 Nov 2009 21:17:24 -0600 http://wordpress.org/?v=2.8.6 hourly 1 By: alphonso richardson http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-21469 alphonso richardson Fri, 23 May 2008 11:00:28 +0000 http://www.universetoday.com/?p=14359#comment-21469 Someone break out the Dyson!! Regarding Dark Matter (or should it be re-named 'Dust'), if Scientists have worked out the average mass distribution of dust in the Universe, couldn't that help solve the problem or at least provide a starting point? I could also be completely off-target, in which case I aplogise in advance. Someone break out the Dyson!!
Regarding Dark Matter (or should it be re-named 'Dust'), if Scientists have worked out the average mass distribution of dust in the Universe, couldn't that help solve the problem or at least provide a starting point?

I could also be completely off-target, in which case I aplogise in advance.

]]> By: Chuck Lam http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-21101 Chuck Lam Wed, 21 May 2008 12:59:56 +0000 http://www.universetoday.com/?p=14359#comment-21101 Hmm . . . maybe only half the light reaching our telescopes because of cosmic dust! Interesting. If so, this doesn't bode well for the SETI efforts to detect modulated femto-watt radio signals. Hmm . . . maybe only half the light reaching our telescopes because of cosmic dust! Interesting. If so, this doesn't bode well for the SETI efforts to detect modulated femto-watt radio signals.

]]> By: Dave Finton http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-21068 Dave Finton Wed, 21 May 2008 03:40:51 +0000 http://www.universetoday.com/?p=14359#comment-21068 I don't see how this would have implications for dark matter hypotheses (note my choice of words), I *do* see a major implication of damnation on what we regard as dark energy. The whole of the dark energy hypothesis is based on the brightness of distant supernovae that was observed by the Hubble Telescope, and this revelation could have serious consequences on the idea that the acceleration of our Universe is increasing. I may be an amateur at astronomy, but I have a sneaking suspicion this could one of those "Eureka!" moments here. I don't see how this would have implications for dark matter hypotheses (note my choice of words), I *do* see a major implication of damnation on what we regard as dark energy. The whole of the dark energy hypothesis is based on the brightness of distant supernovae that was observed by the Hubble Telescope, and this revelation could have serious consequences on the idea that the acceleration of our Universe is increasing.

I may be an amateur at astronomy, but I have a sneaking suspicion this could one of those "Eureka!" moments here.

]]> By: jerry http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-21028 jerry Tue, 20 May 2008 21:25:00 +0000 http://www.universetoday.com/?p=14359#comment-21028 Major, major implications for supernova research: Are the distant standard candles twice as bright as most researchers thought they are? Or has the supposed acceleration of the universe accelerated even more than anticipated? Either answer has profound implications for Einstein's universe...and WMAP interpretations. Major, major implications for supernova research: Are the distant standard candles twice as bright as most researchers thought they are? Or has the supposed acceleration of the universe accelerated even more than anticipated? Either answer has profound implications for Einstein's universe…and WMAP interpretations.

]]> By: robbb http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-20886 robbb Tue, 20 May 2008 06:26:04 +0000 http://www.universetoday.com/?p=14359#comment-20886 I too am wondering about the implications for dark matter/energy theories. This is a fairly huge discovery, yes? I too am wondering about the implications for dark matter/energy theories. This is a fairly huge discovery, yes?

]]> By: Greg http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-20882 Greg Tue, 20 May 2008 05:47:39 +0000 http://www.universetoday.com/?p=14359#comment-20882 Whoops! Looks like this little mistake may have other ramifications. Time to crunch those numbers again. Whoops! Looks like this little mistake may have other ramifications. Time to crunch those numbers again.

]]> By: lrholliday http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-20863 lrholliday Tue, 20 May 2008 00:48:04 +0000 http://www.universetoday.com/?p=14359#comment-20863 Are there any implications about distance measurements and so-called "dark energy"? Could it be that distant type 1a supernovae are dimmed by dust, rather than by expansion of the universe, so expansion is not really accelerating, and "dark energy" really doesn't exist? Are there any implications about distance measurements and so-called "dark energy"? Could it be that distant type 1a supernovae are dimmed by dust, rather than by expansion of the universe, so expansion is not really accelerating, and "dark energy" really doesn't exist?

]]> By: Taylor Cahill http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-20862 Taylor Cahill Tue, 20 May 2008 00:37:43 +0000 http://www.universetoday.com/?p=14359#comment-20862 Re: 300 Chuck makes a good point. I withdraw several of the exclamation points. Someone called it the Big Empty Re: 300
Chuck makes a good point. I withdraw several of the exclamation points. Someone called it the Big Empty

]]> By: Chuck http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-20823 Chuck Mon, 19 May 2008 18:04:58 +0000 http://www.universetoday.com/?p=14359#comment-20823 RE: 300!!! That was my first reaction too, then I realized that they're talking about energy per cubic light year. And, since stars are few and far between -- MOST cubic lights are empty! This brings the average WAY, WAY, down. RE: 300!!!

That was my first reaction too, then I realized that they're talking about energy per cubic light year. And, since stars are few and far between — MOST cubic lights are empty! This brings the average WAY, WAY,
down.

]]> By: Taylor Cahill http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-20822 Taylor Cahill Mon, 19 May 2008 17:47:11 +0000 http://www.universetoday.com/?p=14359#comment-20822 300!!! as in "about 300 times the average energy consumption of the Earth’s population." How may zeros are missing? 300!!! as in "about 300 times the average energy consumption of the Earth’s population." How may zeros are missing?

]]> By: greg your last name http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-20805 greg your last name Mon, 19 May 2008 15:01:05 +0000 http://www.universetoday.com/?p=14359#comment-20805 so, since we use light for almost all of the measurements of the universe, could the knowledge we have hypothesized and "proven" by studying light be entirely incorrect? so, since we use light for almost all of the measurements of the universe, could the knowledge we have hypothesized and "proven" by studying light be entirely incorrect?

]]> By: Nathan Zeldes http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-20803 Nathan Zeldes Mon, 19 May 2008 14:45:47 +0000 http://www.universetoday.com/?p=14359#comment-20803 That's what happens when you build something without providing in advance for its future lifelong maintenance. There are many public projects with the same problem. It must be Billions of years since anyone dusted this universe, small wonder it's full of dirt! That's what happens when you build something without providing in advance for its future lifelong maintenance. There are many public projects with the same problem.

It must be Billions of years since anyone dusted this universe, small wonder it's full of dirt!

]]> By: Dark Gnat http://www.universetoday.com/2008/05/19/theres-a-lot-of-dust-out-there-in-the-universe/comment-page-1/#comment-20800 Dark Gnat Mon, 19 May 2008 14:33:09 +0000 http://www.universetoday.com/?p=14359#comment-20800 With so much dust out there, could there be any implications on dark matte theories? With so much dust out there, could there be any implications on dark matte theories?

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