time for a change of change of pace :-).
Olbers' Paradox: What the mystery of the night sky teaches us about our Universe
"Whether it’s more troubling to imagine that the Universe goes on forever in every direction, or that it has an edge, beyond which there is nothing, is hard to say.'"
(Whats so troubling about it?:-).
"...while we can’t say with any level of confidence whether the Universe goes on forever or not, we can say that our observable universe has an edge, in the sense that there’s a distance beyond which, whatever may or may not exist, we absolutely cannot see it.'
"Even if the cosmos is endless and full of stars, one might reason, we can only see the ones that are close enough for there to have been enough time (since the beginning of the Universe) for the light to reach us from there. Anything distant enough from the Earth that the light travel time is more than the age of the Universe is invisible to us."
"But this light travel distance limit is responsible for our horizon – the edge of the observable universe."
"The Big Bang theory says that the Universe 13.8 billion years ago was a hot, dense inferno, in which all of space was filled with glowing-hot plasma, rippling and churning like the surface of the Sun."
(That is how you can have light on day one of the creation story even though the sun wasn't created until day 4.
Challenge:
Find me another Holy book whose creation story matches up better with the cosmological model. There simply isn't one.
If the beginning is true?
And we can see with our own eyes right now that the end is playing out just as the bible said it would?
Then the middle is true as well and you and your soul would do well to accept it.)
If the Sun Is Created on Day 4, What Is the Light on Day 1?
And Thank you Gerald Schroeder ;-).
"The reason the Universe can be glowing all around us but still look dark comes down to the physics of light in an expanding universe. When space expands, and the distance between objects grows, the light passing between those things gets stretched out, shifting the light to lower frequencies on the electromagnetic spectrum."
"For visible light, lower frequencies correspond to redder colours, so this effect is called “redshift”. You can think of it like a Doppler shift – the same kind of effect that’s responsible for a siren dropping to a lower tone when an ambulance speeds away from you, since distant objects appear to speed away from us as the Universe expands."
"But this effect is not limited to visible light: it spans the whole spectrum. Visible light gets stretched to infrared, infrared to microwave, microwave to radio. And the farther away that light is, the more the cosmos has expanded, and hence the more intense the redshift. Light from the glowing early Universe has been so stretched out by cosmic expansion that we now receive it as a faint glow of microwave radiation, all around us."
(I have read a lot about space, stars, the heavens etc and that is probably the best, simplest explanation of the concepts of Red Shift and Background Microwave Radiation I have ever ran across.
"Well I don't believe there is such a thing as Background Microwave Radiation"
If you are old enough to remember a TV with an antenna? Before cable, satellite etc? When the TV stations, all three of them :-) went off at night? First they played the National anthem, then came the test of the emergency broadcast system with this image:
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