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30 minutes ago, D.A.F.C said:

The planets series is back on again.
Cracking one about Jupiter's influence on the solar system.

Big mental Jupiter, man, tellin' aw the ither wee planets whit tae dae, man!

 

Chewin' the fat - Home | Facebook

Edited by jimbaxters
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https://www.bbc.co.uk/news/science-environment-53151106

Possibly one of the biggest break throughs in astronomy for the decade, LIGO, the detectors that detected gravity waves seem to have used it to detect a star that is heavy enough that light does not escape like a black hole but who's matter has not yet collapsed into a singularity. The other possibility is it is a light (as in weight not radiation) black hole. 

Either of these objects would be novel to science and need some advancing in physics to explain. I do not think this will change our understanding of gravity but may related to the weak nuclear force and its carrier particles, the W and Z bosons. Though I will have to read up on that. My books are still all in boxes.... hmmmm.

While I am here.....

 

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(actually I think its the strong force and neutron degeneracy that prevent collapse, the weak force gives in when the pressure is great enough to force electrons and protons into neutrons. )

Edited by dorlomin
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The Horizon programme on Pluto that was on last night is worth catching up with if you missed it 

Rather than a dull frozen waste that could be twinned with Harthill it is a more interesting place than people thought 

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Some new research out a couple of weeks ago seem to put Axions as pretty much the leading candidate for dark matter. Dark matter is something that makes up most of the "stuff" in the universe but only interacts with gravity, not the other 3 fundamental forces, electromagnetism (aka light), the strong and weak nuclear forces. 

Axions are a hypothetical particle that was created in the very early universe, new research suggests they may have been created in enough quantity to be most of the dark matter. This research is still very new and candidates for dark matter have been chopping and changing for decades. 

They solve a couple of other small problems in physics as well though and that is often a good sign they may yet be out there. 

https://phys.org/news/2020-06-case-axion-dark-gains-traction.html

LHC is nowhere near energetic enough to create them so it will be decades before we narrow down a way of testing for them directly. The theory for them relies on what is called "quantum chromodynamic field theory", this is pretty well established as well so they are not wacky way out there particles like some that get proposed. More like when people needed things like antimatter and nutrinos to make equations work (both are now very widely accepted)

Edited by dorlomin
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On 07/07/2020 at 13:10, tamthebam said:

The Horizon programme on Pluto that was on last night is worth catching up with if you missed it 

Rather than a dull frozen waste that could be twinned with Harthill it is a more interesting place than people thought 

Pluto is glad it’s choice of twin has moved forward , but where else is cold and only maybe has sins of life and hydrocarbon grime in the snow ....

Edited by bishopburn boy
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