Cosmology reminder: a model can fit the universe’s expansion extremely well and still struggle with how structures grow. Expansion and growth may not be as tightly linked as we usually assume. Sometimes the assumptions matter more than the fit. #Cosmology #Universe #Astrophysics

Sometime the hard part isn’t adding new physics,
but removing what isn’t strictly necessary
In cosmology, many tensions come from overparameterising the infrared rather than understanding it
Minimal structures tend to survive longer than clever fixes
#cosmology #theoreticalphysics #physics #science

What if the Hubble tension comes from the late universe, not the early one? A small, smooth response of the vacuum can ease the mismatch without exotic physics. A simple idea with real power. #HubbleTension #Cosmology #Universe #DarkEnergy

Anoche (20:49:51 UTC) hubo un #terremoto de M7.0 entre #Alaska y #Canadá. Nuestro @raspishake.bsky.social lo detectó unos minutos después...

... y esta mañana lo he convertido a sonido.
Recomiendo escucharlo con auriculares. El terremoto es el 'boom' hacia 180.

#geología #geofísica #ciencia 🧪⚒️

Physics moves forward, and so do I… just with a slightly smaller cosmological constant.

#physics #sciencehumor #cosmology #astrophysics #research #universe #scientist #theoreticalphysics

The universe belongs to no institution.
Sometimes the questions that matter most arise outside the lab
in the places science forgot to look.

#Science #Philosophy #Cosmos #Curiosity #ThinkingOutsideTheBox #Universe #Innovation #CriticalThinking

A model that only breathes within a subset of data does not describe the universe, it describes its cage.
#Science #Physics #Cosmology #DataIntegrity #ScientificMethod #NoAdHoc #TruthOverConvenience #CleanScience #PhilosophyOfScience #ResearchEthics

New Zenodo release: late-time constraints on TCC-EFT using SNe, BAO (DESI DR2) and OHD.
No external priors or fixed parameters.
doi.org/10.5281/zeno...
#Cosmology
#DarkEnergy
#BAO
#Supernovae
#OHD
#Hubble
#LateUniverse
#Astrophysics
#DataDriven
#MCMC
#ChiSquare
#LambdaCDM

New short math note: full scalar–tensor derivation behind the TCC–EFT (metric variation + FLRW reduction). No physics, just the formal steps.
doi.org/10.5281/zeno...
#physics
#theoreticalphysics
#cosmology
#scalartensor
#gravity
#eft
#flrw
#gr
#mathphys
#research

Updated overview of the Cosmic Tension–Compression EFT (TCC–EFT).
A concise IR scalar–tensor cosmological EFT restricted to FLRW dynamics

DOI → doi.org/10.5281/zeno...

#cosmology #darkenergy #EFT #scalartensor #physics #astro

Webb has revealed for the first time that there are four shells of dust around this pair of Wolf-Rayet stars, which are known as Apep.

Read more 👉 https://esawebb.org/images/wolf-rayet-apep/
🔭

New short math note: full scalar–tensor derivation behind the TCC–EFT (metric variation + FLRW reduction). No physics, just the formal steps.
doi.org/10.5281/zeno...
#physics
#theoreticalphysics
#cosmology
#scalartensor
#gravity
#eft
#flrw
#gr
#mathphys
#research

Just posted a short note on Medium about a simple idea in cosmology.
Nothing fancy, just a minimal IR correction I’ve been thinking about.
If anyone wants to read it, here it is:
medium.com/@jnclaude571...
#cosmology #astrophysics #science #physics #EFT #OpenScience

Sometimes I think the universe is expanding just to get away from us.
And honestly… I get it.

#science #physics #cosmology #space #astronomy #astrohumor #scicomm #nerdhumor #universe

A small fragment of the intuition that led me to TCC–EFT.
Not everything in cosmology starts from equations — sometimes it begins with analogies.
#cosmology #darkenergy #EFT #physics #spacetime #scienceart #astro #gravity #vacuum #cosmic #universe #quantum #theoreticalphysics #astrophysics

Updated overview of the Cosmic Tension–Compression EFT (TCC–EFT).
A concise IR scalar–tensor cosmological EFT restricted to FLRW dynamics

DOI → doi.org/10.5281/zeno...

#cosmology #darkenergy #EFT #scalartensor #physics #astro