[Ryan13]

Never would have contemplated discussing the Big Bang on a BMW forum, but the world has changed. The JWST didn’t disprove the Big Bang, the question it raised was how could some of the massive “structures” seen in the images have formed so early. Personally, I believe that is just a gap in our current theory, but there is so much more that “proves” the singularity, than this one question of the size of some clumps of matter.

Perhaps, for me, the most tangible proof point is the ratio(s) of early element creation that still are still constant today. One of the most interesting processes in nucleosynthesis for the BB was the “deuterium bottleneck”…basically, hydrogen formed first, but because the environment was so hot (energetic), as deuterium tried to form, it was quickly annihilated by high energy protons…so it delayed all other building block elements from forming. This fixed the ratios of particles and elements that exist today.

From WIKI……As the universe expands, it cools. Free neutrons are less stable than helium nuclei, and the protons and neutrons have a strong tendency to form helium-4. However, forming helium-4 requires the intermediate step of forming deuterium. Before nucleosynthesis began, the temperature was high enough for many photons to have energy greater than the binding energy of deuterium; therefore any deuterium that was formed was immediately destroyed (a situation known as the "deuterium bottleneck"). Hence, the formation of helium-4 is delayed until the universe became cool enough for deuterium to survive (at about T = 0.1 MeV); after which there was a sudden burst of element formation. However, very shortly thereafter, around twenty minutes after the Big Bang, the temperature and density became too low for any significant fusion to occur. At this point, the elemental abundances were nearly fixed, and the only changes were the result of the radioactive decay of the two major unstable products of BBN, tritium and beryllium-7.

[floridaorange]

Originally Posted by Ryan13

Never would have contemplated discussing the Big Bang on a BMW forum.

OT hits different

Thanks for that post, fascinating info. So much detail

[Lady Jane]

Epic and deadly.

[Lady Jane]

In the news today:

The jellyfish galaxy JW39 hangs serenely in this image from the NASA/ESA Hubble Space Telescope. This galaxy lies over 900 million light-years away in the constellation Coma Berenices and is one of several jellyfish galaxies Hubble has been studying over the past two years. (Image credit: ESA/Hubble & NASA, M. Gullieuszik and the GASP team)

[UncleWede]

900 million light years away means it's probably all whirled itself into oblivion, if you could somehow "visit" the location.

And that's amazing in itself. That light has traveled in a straight (mostly) line for 900 million years, just so we cold look at it and wonder.

[Llarry]

Sombrero Galaxy -- James Webb Space Telescope mosaic taken August 25, 2023.

(cross-post)

[BMW F22]

Originally Posted by tranquility

I love stuff like this, tx. That's why I think it's stupid that us humans fight w each other, we are lesser than specks of dust on an ant's body, why have conflict when we are really all connected, why not work together creating instead of destroying?

Here's something similiar.

I’ve been thinking the following for years: everything around us moves in accordance with our thoughts and actions, but we don’t actually move. In other words, when we decide to “walk,” everything around moves to give the illusion of walking. The video above touches on that concept: everything that exists is for you sort of way.

[Llarry]

A beautiful image from the Hubble telescope: Saturn with aurora.

[Llarry]

And another good shot of a (mini) planet: Pluto. Source uncredited.

[tranquility]

Originally Posted by BMW F22

I’ve been thinking the following for years: everything around us moves in accordance with our thoughts and actions, but we don’t actually move. In other words, when we decide to “walk,” everything around moves to give the illusion of walking. The video above touches on that concept: everything that exists is for you sort of way.

Yes, I truly believe that, at least to an extent, our thoughts create our reality. Back in HS, our physics teacher described walking as us just pushing off the Earth while we remain in one place, it's a nice concept but then I think about everyone else doing that, won't the Earth then explode or something? LOL.

[UncleWede]

Originally Posted by tranquility

I think about everyone else doing that, won't the Earth then explode or something? LOL.

Good for you! You can live your life, but realize there are others around you. It's an unfortunately unique perspective.

[tranquility]

Originally Posted by UncleWede

Good for you! You can live your life, but realize there are others around you. It's an unfortunately unique perspective.

Wdym?

[UncleWede]

Originally Posted by tranquility

Wdym?

SO dang many peeps think they, and they alone, are the center of the universe

[tranquility]

Originally Posted by UncleWede

SO dang many peeps think they, and they alone, are the center of the universe

Hmmm, I suspect you thought that. Anyway, I didn't say that I'm the only one in existence....read again.

[BMW F22]

Originally Posted by tranquility

Yes, I truly believe that, at least to an extent, our thoughts create our reality. Back in HS, our physics teacher described walking as us just pushing off the Earth while we remain in one place, it's a nice concept but then I think about everyone else doing that, won't the Earth then explode or something? LOL.

Everyone’s thoughts create their own reality. It’s all a simulation of sort.

[UncleWede]

Originally Posted by tranquility

Hmmm, I suspect you thought that. Anyway, I didn't say that I'm the only one in existence....read again.

EXACTLY, you didn’t say that. Which means you are aware of others -it was a compliment to your character

[tranquility]

Originally Posted by UncleWede

EXACTLY, you didn’t say that. Which means you are aware of others -it was a compliment to your character

Dude, lol, there is something lost in the internet, it sounded like the opposite esp w the way you quoted and wrote your posts.

Anyway, tx, I guess.

[snowbimmer]

The universe is apparently complicated, too.

[UncleWede]

Originally Posted by snowbimmer

The universe is apparently complicated, too.

Only when it doesn't follow MY directions

[Llarry]

Comet Nishimura 2023

It last swung by in 1588 and will be back in another 435 years.

[Llarry]

NGC6302 the Butterfly Nebula - 2009 Hubble image

[Lady Jane]

When you think about it, if aliens located 65 million light years away were to look at the earth through a powerful telescope, they would see dinosaurs.