Comments on: Galaxy from distant past is very fertile https://gregladen.com/blog/2011/12/22/galaxy-from-distant-past-is-ve/ Tue, 03 Jan 2012 04:03:52 +0000 hourly 1 https://wordpress.org/?v=6.4.8 By: michael hammerschlag https://gregladen.com/blog/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510719 Tue, 03 Jan 2012 04:03:52 +0000 http://scienceblogs.com/gregladen/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510719 Interesting, but all this talk of opaque fog before there was light is so much speculative jibber-jabber. Opaque to ultraviolet! – there was NO LIGHT YET! How would anyone know? Nobody can know this stuff- once you get that close to the Big Bang (if that even happened, since now they say the Universe is expanding! Maybe the steady state theorists were right), it’s not science, but guesstimates or religion. You can make up almost any theory, and make it “explain” the facts.

]]> By: Greg Laden https://gregladen.com/blog/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510718 Sat, 31 Dec 2011 18:45:18 +0000 http://scienceblogs.com/gregladen/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510718 The speed of light does not change relative to the observer. The speed of a baseball does. That these two things are true led to some of the most important reformulations of what we think about the universe, by Albert Einstein.

This is a science blog. We should avoid the pre-relativity physics.

]]> By: tytower https://gregladen.com/blog/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510717 Sat, 31 Dec 2011 08:42:23 +0000 http://scienceblogs.com/gregladen/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510717 There are a lot of assumptions in this and who knows which are right.
Light can be slowed . A light emitting object moving away causes the light we see to slow. One coming towards us speeds it up . Stationary it would be at our accepted speed of light. OK I know this is all relative to the observer but what if some other process ,or situation actually did slow light . How would we distinguish it from normal light?

What if that distant galaxy sent this light out 20 Billion years ago and we can’t tell yet? What if it left 5 Billion years ago only.

How would the viewer tell if the light passed through an interface ,like air to water , and is bent at that or more interfaces ? How would we know?

There’s no God but feel free to fool yourself . I’m not listening to the BS though.

]]> By: dexadog https://gregladen.com/blog/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510716 Thu, 29 Dec 2011 17:01:06 +0000 http://scienceblogs.com/gregladen/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510716 Have been hearing lately that the current speed of light may not be constant for the history of the universe; the speed limit mary vary through time. Also another idea that the speed of light may vary depending on location. Does info from these way-old early galaxies shed any ‘light’ on these proposals?

]]> By: bomoore https://gregladen.com/blog/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510715 Thu, 29 Dec 2011 16:58:11 +0000 http://scienceblogs.com/gregladen/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510715 Have been hearing lately that the current speed of light may not be constant for the history of the universe; the speed limit mary vary through time. Also another idea that the speed of light may vary depending on location. Does info from these way-old early galaxies shed any ‘light’ on these proposals?

]]> By: can atasever https://gregladen.com/blog/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510714 Tue, 27 Dec 2011 01:47:25 +0000 http://scienceblogs.com/gregladen/2011/12/22/galaxy-from-distant-past-is-ve/#comment-510714 Space is an amazing mystery for a human being; it has always been and always will be.

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