The Space Thread

[Imploding Turtle]

Have a look at this. It's an to scale illustration of the largest known supermassive black hole and that in the middle is our 80au solar system. Also known as your mom.

[BFCmaj]

https://www.facebook.com/sharegh/videos ... 210533845/" onclick="window.open(this.href);return false;

[geopancake]

wow it reminds me of my visit to Calcutta

[Hipper]

I wonder what that image cost to make?

It may have been cheaper to photograph the top of a vase, or perhaps a cement mixer.

[mybloodisclaret]

So er, what goes on in one of them? Is like a good day out to the seaside?

[Cirrus_Minor]

If you fell into that just think how dead you would be.

[mybloodisclaret]

Proper

[LeadBelly]

That's one of the densest things I've ever seen on this site.

[karatekid]

Was the writing in the middle done by a spaceship, a la the red arrows?

[Spiral]

https://www.facebook.com/sharegh/videos ... 210533845/

Point of pedantry; the video proclaims "No, you are not the centre of the Universe". This is wrong. If the Universe is infinite, which we believe to be the case, then literally every single point in space can be considered the centre of the Universe for want of an edge from which to define a centre point. You are, and so am I, and as quite a few users on here will be loathed to concede, yes, ImplodingTurtle IS at the centre of the Universe. The world literally revolves around him. (And me, and you, and everything else).

[Wile E Coyote]

i think there is an end to space, its not endless as they suggest.

[spadesclaret]

i think there is an end to space, its not endless as they suggest.

Trump is building a wall to enclose space. He's making the aliens pay.

[BFCmaj]

Point of pedantry; the video proclaims "No, you are not the centre of the Universe". This is wrong. If the Universe is infinite, which we believe to be the case, then literally every single point in space can be considered the centre of the Universe for want of an edge from which to define a centre point. You are, and so am I, and as quite a few users on here will be loathed to concede, yes, ImplodingTurtle IS at the centre of the Universe. The world literally revolves around him. (And me, and you, and everything else).

That only works if you believe the universe is infinite.

https://m.youtube.com/watch?v=cQgZ-wGCp2g" onclick="window.open(this.href);return false;

[LoveCurryPies]

That's one of the densest things I've ever seen on this site.

You've not seen Saxoman or KRBFC then!

[Imploding Turtle]

Point of pedantry; the video proclaims "No, you are not the centre of the Universe". This is wrong. If the Universe is infinite, which we believe to be the case, then literally every single point in space can be considered the centre of the Universe for want of an edge from which to define a centre point. You are, and so am I, and as quite a few users on here will be loathed to concede, yes, ImplodingTurtle IS at the centre of the Universe. The world literally revolves around him. (And me, and you, and everything else).

It's not even theoretical that i'm the centre of the known universe. It's a fact. Where ever i'm standing is the centre of my known universe. Same with anyone else, where ever you are you are at the centre of your known universe.

[BennyD]

If the Universe is still expanding, what is it expanding into? There must be something, or it couldn't expand into it. Answers on a postcard to anyone who gives a sh!t.

[Wile E Coyote]

If the Universe is still expanding, what is it expanding into? There must be something, or it couldn't expand into it. Answers on a postcard to anyone who gives a sh!t.

haha, brilliant. thanks mr cox.

[CombatClaret]

Still think this is one of the most beautiful images ever taken for near by Saturn.
Annotated version.
Arrow = You Are Here

[Spiral]

If the Universe is still expanding, what is it expanding into? There must be something, or it couldn't expand into it. Answers on a postcard to anyone who gives a sh!t.

I sense quite a bit of cynicism in your post, but I'll humour you nonetheless. Try not to imagine space expanding into another thing, think instead of space expanding exponentially in volume, expanding into itself. In principal, the distance between any two points is increasing in volume exponentially, the gap between the two points being filled by nothing but newly 'created' (strictly speaking, 'expanded', i.e. an increase in volume of) space. This, however, is only truly observable over vast distances. At a sub atomic level, this principle evaporates and an entirely different physical reality exists. Reconciling the 'big scale' physics with the 'small scale' physics is the greatest scientific challenge we face.

[CnBtruntru]

Won't make one bit of difference when the F...... Great Meteor hits.

[Spiral]

An understanding of the the mathematics that underpin, (perhaps 'describe' is a better word, otherwise we're delving into frankly absurd notions of divinity), the nature of the Universe actually allows us to divert the Great Meteor away from the Earth. We'd just shoot a 'chunk of stuff' with just enough mass towards the Great Meteor with the right precision to divert it's trajectory away from Earth using nothing more than the 'chunk of stuff's' gravitational effect on the Great Meteor.

[Imploding Turtle]

If the Universe is still expanding, what is it expanding into? There must be something, or it couldn't expand into it. Answers on a postcard to anyone who gives a sh!t.

It's all but proven that it's expanding. What it's expanding into obviously isn't known. It might simply be expanding into nothing.

[addisclaret]

Still think this is one of the most beautiful images ever taken for near by Saturn.
Annotated version.
Arrow = You Are Here

Let's go a bit Sagan-esque on this.

One small dot.

You are here, everyone you have ever or still know, is or was here. All your relatives and extended family and ancestors are or were here. Every historical fact you learned about supposedly happened here. Everything that seemed important to you happened here. All the crap you read about every day is happening here.

Steven Defour scored a goal here yesterday.

[Spiral]

Tom Heaton's performance v ManU, just out of shot.

[NRC]

It's expanding into itself, well, what it left after the last time it contracted. Space, in its pulse, leaves space for space to expand into because it made it so. Otherwise you'd have an edge.

[BennyD]

I sense quite a bit of cynicism in your post, but I'll humour you nonetheless. Try not to imagine space expanding into another thing, think instead of space expanding exponentially in volume, expanding into itself. In principal, the distance between any two points is increasing in volume exponentially, the gap between the two points being filled by nothing but newly 'created' (strictly speaking, 'expanded', i.e. an increase in volume of) space. This, however, is only truly observable over vast distances. At a sub atomic level, this principle evaporates and an entirely different physical reality exists. Reconciling the 'big scale' physics with the 'small scale' physics is the greatest scientific challenge we face.

This sounds like another theory to reconcile disparate observations, a bit like the 'ether'. If space isn't expanding into anything, that infers that the outer edges are fixed. If so what is beyond that edge? Another way of asking the same question; if the 'Big Bang' actually occurred and all the matter in the universe came from something the size of a heavy tennis ball, what did that matter expand into?

[Spiral]

The perspective is just a bit off. Example, think of time. Time flows in one direction and as it passes, flows or 'expands', you can demonstrate that at this moment in time, more time has elapsed since the beginning of the universe compared with five minutes ago. Time doesn't flow, 'expand' into a primed and ready to go plane, it is just created as time 'expands'. Three dimensional space works in a similar kind of way. The idea of 'the future' is abstract. It isn't tangible; we can't get there without waiting for time to expand into it. It doesn't exist. Similarly-multiverse theories aside-there is nothing 'outside' of the universe because if it existed it would be a part of our universe. This seems abstract, too. I think the comparison with time is a useful way of 'visualising', so to speak, nothingness, whilst confined to a 3D spacial plane.

[ontario claret]

Speaking of dense, where's KRBFC?

[ontario claret]

I'm thinking about this. First of all, where is the camera located for that picture. Must have somewhere in the centre of that black hole. How did it come back from being crushed by the immense gravity field. I think somebody has been re-watching "2001: A Space Odyssey".

[bobinho]

The perspective is just a bit off. Example, think of time. Time flows in one direction and as it passes, flows or 'expands', you can demonstrate that at this moment in time, more time has elapsed since the beginning of the universe compared with five minutes ago. Time doesn't flow, 'expand' into a primed and ready to go plane, it is just created as time 'expands'. Three dimensional space works in a similar kind of way. The idea of 'the future' is abstract. It isn't tangible; we can't get there without waiting for time to expand into it. It doesn't exist. Similarly-multiverse theories aside-there is nothing 'outside' of the universe because if it existed it would be a part of our universe. This seems abstract, too. I think the comparison with time is a useful way of 'visualising', so to speak, nothingness, whilst confined to a 3D spacial plane.

Wow. Just.....wow.

Seriously though, I love all things universe/stars/constellations etc.

[ontario claret]

The more drugs I do, the more I love all things universe/stars/constellations etc. Now, somebody pass me that heroin again.

[ontario claret]

One more shot, and I'll become a B****** supporter.