What is the Universe expanding into..

Do you think there was anything before the big bang?

  • I don't think there was anything before the Big Bang

    Votes: 56 12.5%

  • I think something existed before the Big Bang

    Votes: 200 44.7%

  • I don't think the big bang happened

    Votes: 54 12.1%

  • I think the universe is part of a mutiverse

    Votes: 201 45.0%
  • Total voters
    447
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#5,644
Bit of a treat the next fortnight Mon to Fri on BBC Radio 4 at 12.06 and 22.45.🙂

Klara and the Sun by Kazuo Ishiguro - 1: The Store - BBC Sounds

Couldn't wait, so just listened to Episode 1 on BBC Sounds.

"Klara and the Sun" by Kazuo Ishigura. Nobel prize winner for Literature couple of years back. You probably know him for the lovely film of "Remains of the Day" with Anthony Hopkins and Emma Thompson. "Never let me go" was filmed too. Never Let me Go was one of the most disturbing and emotional things I have ever read.

Without spoiling things, Klara is an "Artificial Friend" for children. It is about Artificial Intelligence. A theme also in "Bladerunner" and "Ex-Machina". I am gripped and slightly spooked already. Bit of luck because the bookshop didn't have it today.
 
#5,649
I've already drawn up plans for when my body gets sluggish! 😀

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#5,650
So if you all could indulge me for a moment...that analogy of the rising dough with the raisins- I get that it represents the expansion of the Universe in reference to distance between celestial bodies and objects. But am I correct in defining it as the expansion of the actual 'space' between those objects and not the constant movement of objects further apart from each other? Is space itself stretching? Becoming larger, more than it was before? I just read an insightful article on MSN about this, that space is more than the matter that resides in it. That it's 'something', tangible in some way. If that is so, how could it multiply itself without additional building blocks, I mean if it's not 'nothing' to begin with?
 
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#5,651
Discopete said:
So if you all could indulge me for a moment...that analogy of the rising dough with the raisins- I get that it represents the expansion of the Universe in reference to distance between celestial bodies and objects. But am I correct in defining it as the expansion of the actual 'space' between those objects and not the constant movement of objects further apart from each other? Is space itself stretching? Becoming larger, more than it was before? I just read an insightful article on MSN about this, that space is more than the matter that resides in it. That it's 'something', tangible in some way. If that is so, how could it multiply itself without additional building blocks, I mean if it's not 'nothing' to begin with?
Click to expand...

Galu may have a grip on this stuff, but I know I don't. I just follow the clues. 😱

842735d1589123914-universe-expanding-clouseau-png


But a significant clue arrived last Sunday week at 10PM. An unexpected meteoritic visitor from Outer Space! 😀

Gloucestershire meteorite is first UK find in 30 years - BBC News

This Fireball was identified by cameras as landing in deepest, darkest Gloucestershire. Amazingly an alert BBC follower found it in his front driveway next morning.

Excellent!

Further investigations reveal that Winchcombe was the original Capital of Mercia. King Ceowulf II.

What does it mean? No idea. But it missed my lovely sister in Bourton by 10 miles. Phew!
 
#5,652
Discopete said:
Is space itself stretching? Becoming larger, more than it was before?
Click to expand...
Space isn't expanding in the manner that building an extra room on the side of your house extends your house.

Space doesn't extend itself, it is the distance between any two points within the universe that is increasing.

If you find that difficult to comprehend, then rest assured that nobody else is clever enough to understand the behaviour of the Universe!

We can observe that an accelerating expansion of the Universe is happening, but like the generation before Einstein we can't yet do the mathematics to explain why it is happening.

What we can declare with confidence is that there is more to the Universe than we currently know!

That's my take on expansion - I will expand on it no further! 😀
 
#5,655
#5,657
Galu said:
Space isn't expanding in the manner that building an extra room on the side of your house extends your house.

Space doesn't extend itself, it is the distance between any two points within the universe that is increasing.
Click to expand...
So here is the article I mentioned. I don't mean to be a stickler but I thought I was beginning to get a bit of a grasp on this topic.



Daniel Whiteson, Phd. He conducts physics experiments at the LHC:
What Is Space?


when you've got time
 
#5,658
That lengthy article is simply a slick amalgamation of our notions of the physics of space, the majority of which have been previously discussed in this thread.

Which part of the article do you feel gives you a grasp on the nature of the expansion of the Universe?

Perhaps it's the idea of "space goo"?

That idea is not so far-fetched. Some cosmologists are actually considering bringing back a concept dismissed at the end of the 19th century: the ether, a ghostly substance through which light and particles move when travelling in space.
 
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#5,660
Yes, what you have said is in accord with what I said earlier.

Galactic clusters are not actually moving apart, it is the distance between them that is getting bigger.
 

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