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Old 12-26-2021, 05:17 AM
 
182 posts, read 120,142 times
Reputation: 902

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Quote:
Originally Posted by MechAndy View Post
I don’t believe in the Big Bang theory.
Never have.
So how do you explain the array of red-shifted galaxies, microwave background radiation at ~2.7K, and the chemical composition of the observed early universe? The Big Bang - like all scientific theories - makes predictions. For example, long before it was found it was predicted by the model that the universe would be permeated by a glow of microwave radiation at the approximate temperature that it is. And when this was found? It led to a Nobel Prize for the discoverers.

You see, like all scientific theories, the Big Bang is falsifiable. You should lay out your evidence against it. I'm sure you wouldn't mind a Nobel and the roughly 1,000,000 $US (albeit in Swedish krona, so you'll have to exchange it) that it includes.
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Old 12-26-2021, 06:29 AM
 
8,943 posts, read 11,786,454 times
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Fingers still crossed for JWST, as it still has to complete many tasks to become operational. I watch NASA updates daily.

https://www.jwst.nasa.gov/content/we...ereIsWebb.html
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Old 12-26-2021, 08:21 AM
 
Location: King County, WA
15,847 posts, read 6,547,612 times
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Quote:
Originally Posted by saltine View Post
Webb project began 2004. ISS completed 2007
ISS assembly began in 1998 and it was occupied in 2000. Presumably they can plan.
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Old 12-26-2021, 09:04 AM
 
Location: El Paso, TX
33,240 posts, read 26,455,707 times
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James Webb is coming up on 162,000 miles from earth.

It just passed it.
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Old 12-26-2021, 09:10 AM
 
Location: El Paso, TX
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I was checking the NASA updates for the Mid Course Correction Burn 1a which was supposed to occur at 12.5 hours after launch but didn't see anything about it. I assume it did take place as scheduled.
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Old 12-26-2021, 09:27 AM
 
Location: Rural America
269 posts, read 329,607 times
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Quote:
Originally Posted by elnina View Post
The Big Bang (theory) is how astronomers explain the way the universe began. During the Big Bang, a giant explosion which occurred between 10 and 20 billion years ago, all of the space, time, matter, and energy in the Universe was created.
It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now - and it is still expanding.
Georges Lemaître is the father of that theory.
Just a little nitpick. The Big Bang does not really explain the way the Universe "began." It describes what must have been going on a fraction of a second after the very "beginning" (and thereafter). That beginning, at time zero, is unknown as to how it got started (or whether there was anything "before"). All scientists know about that very early time is that the Universe was very dense and very hot... and expanding. Such an environment can be duplicated, to an extent, using high-powered particle accelerators such as CERN. One of the key predictions of the theory is the abundance of the elements. The abundance of chemical elements in the universe is observed to be mainly hydrogen and helium. (Everything else amounts to about 2% of the total.) The Big Bang predicts the precise ratio of helium to hydrogen because the early Universe was only hot enough to fuse helium from hydrogen for a short amount of time (about 13 minutes) due to the expansion (which implies cooling).

Sorry, got carried away, lol. The Big Bang was not really an "explosion" since that implies it happened in an existing space. The BB was not an event IN space, but rather OF space.

And of course, to say the Universe was "created" is much too loaded of an expression (implying a Creator). That part is just unknown, so nothing can really be said about it (and scientists don't).
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Old 12-26-2021, 10:34 AM
 
10,513 posts, read 5,167,683 times
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Quote:
Originally Posted by Heron31 View Post
And of course, to say the Universe was "created" is much too loaded of an expression (implying a Creator). That part is just unknown, so nothing can really be said about it (and scientists don't).
Stephen Hawking said quite a lot about the existence of God.
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Old 12-26-2021, 11:29 AM
 
Location: El Paso, TX
33,240 posts, read 26,455,707 times
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I was just watching the deployment sequence. There's a lot that has to go right, and a lot that could go wrong. Here's hoping that all the testing to make sure everything works properly pays off.

James Webb Space Telescope Deployment Sequence (Nominal)


https://www.youtube.com/watch?v=RzGLKQ7_KZQ
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Old 12-26-2021, 11:36 AM
 
6,346 posts, read 2,900,201 times
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Quote:
Originally Posted by elnina View Post
I don't think he meant the TV show

The Big Bang (theory) is how astronomers explain the way the universe began. During the Big Bang, a giant explosion which occurred between 10 and 20 billion years ago, all of the space, time, matter, and energy in the Universe was created.
It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now - and it is still expanding.
Georges Lemaître is the father of that theory.
The only other theory is continuous creation. I didn't think anyone believed that anymore.
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Old 12-26-2021, 12:31 PM
 
Location: King County, WA
15,847 posts, read 6,547,612 times
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Quote:
Originally Posted by MechAndy View Post
I don’t believe in the Big Bang theory.
Never have.
The Universe doesn't believe in you either.
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