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#cosmology

86 posts24 participants16 posts today
Public
Mikko Tuomi

At long last, a unified theory combining #gravity with the other fundamental forces—electromagnetism and the strong and weak nuclear forces—is within reach.

Bringing gravity into the fold has been the goal of generations of physicists, who have struggled to reconcile the incompatibility of two cornerstones of modern physics: #quantum field theory and Einstein’s theory of gravity.

Researchers at Aalto University have developed a new quantum theory of gravity which describes gravity in a way that’s compatible with the Standard Model of particle physics, opening the door to an improved understanding of how the #universe began.

#physics #cosmology
aalto.fi/en/news/new-theory-of

www.aalto.fiNew theory of gravity brings long-sought Theory of Everything a crucial step closer | Aalto UniversityA quantum theory of gravity would clear the path to answering some of the biggest questions in physics.
Public
Kent Pitman

@vnikolov

> Now I am reminded (maybe it's a distant
> association) of John Maynard Keynes
>(I think): "in the long run we're all dead".

Yeah, this kind of obvious truth is troublesome. I have a closely related haiku (original context climatejustice.social/@kentpit):

borrowed from Nothing
we, and Time itself, pretend
we were here at all

Climate Justice SocialKent Pitman (@kentpitman@climatejustice.social)@Aphelion@mastodon.sdf.org borrowed from Nothing we, and Time itself, pretend we were here at all #haiku #senryu #physics #universe #CreationMyth #poem
#haiku#senryu#poem
Public
Victoria Stuart 🇨🇦 🏳️‍⚧️

Competing theory to dark energy suggests universe has different time zones
cbc.ca/radio/quirks/dark-energ
news.ycombinator.com/item?id=4

Supernovae evidence for foundational change to cosmological models
academic.oup.com/mnrasl/articl

* universe has filament structure (mass along filaments; empty "bubble" spaces)
* differential relativity (time) dense/empty spaces

CBCA competing theory to 'dark energy' suggests the universe has different time zones | CBC RadioNew measurements of a certain type of supernova seems to indicate that our expanding universe isn't accelerating at all, negating any need to invoke a mysterious 'dark energy' to explain supernovae observations.
#cosmology#DarkEnergy#relativity
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