Recent comments in /f/space

Toebean_Farmer t1_ja8hfmy wrote

Newest theories have hypothesized a “vacuum energy” which sounds like what you might be talking about in part A: it acts sort of like the opposite of gravity, where the energy of a black hole would push matter away from it, at a certain point.

Part C seems to be coming up on black hole cosmology and unfortunately would be damn-near impossible to prove.

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OddClass134 t1_ja8hbtw wrote

I'm not an expert, but I did attend a talk with an expert last week. It seemed his* theory is sort of neither, but rather that general relativity models just aren't being applied correctly. So underlying theory is the same, dark matter doesn't exist, but the math isn't mathing.

Edit for clarity

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I_Heart_Astronomy t1_ja8h6vh wrote

The side of Jupiter definitely influences how much detail is visible, but I will say that OP's previous images were WAY over-sharpened. It made the planet's features look more strongly contrasted than they actually are. His third image is processed to look more natural.

This is a pretty close simulation of what Jupiter actually looks like through the eyepiece of a modest sized telescope: https://i.imgur.com/QZzCNoT.jpeg, contrast is much more subtle, so OP's third image is more closely aligned with what Jupiter is really like.

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Anonymous-USA t1_ja8fy6u wrote

The universe is really “filled to the brim” on the very large macro level; you look at a galaxy and it looks very populated, but the actual distance and influence between individual stars in minuscule. Between individual galaxies even less. Matter in space is very minimal. If you’re referring to the fabric of space-time itself, then that is everywhere. But hydrogen, the most abundant element, is sparse. Free energy is weak — imperceptible gravitational ripples and microwave radiation.

Yours seems to be hypothesis-by-analogy, ie. water is a medium, then why not space?. Analogies are good for conceptualizing things and simplifying concepts, but not for workable theories. As kindly as I can say, I think that is the case here.

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10_pounds_of_salt t1_ja8fxdp wrote

I'm not that knowledgeable on this topic but I see a few issues with this.

  1. What I'm taking from this is your trying to say that dark matter is the manifestation of space time overlapping on itself which is just nonsensical.

  2. What do you mean "overflowing". space dosent have a size. In order for this to work there would need to be a greater reference point which would encompass the entire universe (at least I think that's how it works) which dosent exist.

  3. What would that overflow appear to us as?

  4. Space time cant warp itself

  5. The wave idea just does not make sense.

  6. How could the expanding universe create mirages? And what "physical manifestations" would occur.

I'm pretty sure some one more knowledgeable can go into the details.

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ChrisARippel t1_ja8dq25 wrote

Have you considered making a the Cosmic Web?

Though many people have heard of Dark Matter and Dark Energy, I suspect fewer people have heard of the Cosmic Web. The idea will be new.

  • Matter and dark matter condensing into filaments. Where filaments cross galaxies appear.

  • Dark energy expanding voids between the filaments.

  • The Cosmic Web is impressively BIG.

10 year old video

Building the Cosmic Web on a computer. Part 1

Millennium Cosmic Web Simulation Project

There are more cool videos of Cosmic Web, e.g., tours through the web, etc. for a presentation.

Articles

Clues about Cosmic Web

Spinning Cosmic Web

Possible photograph of Cosmic Web

Cosmic Web could be hiding new physics

I think you could also imitate a Cosmic Web with cotton fibers, glue and paint.

Good luck.

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