Create accountLogin

Recent searches

No recent searches

Search options

Only available when logged in.
med-mastodon.com is one of the many independent Mastodon servers you can use to participate in the fediverse.
Medical community on Mastodon

Administered by:

Server stats:

412
active users

med-mastodon.com: AboutProfiles directoryPrivacy policy

Mastodon: AboutGet the appKeyboard shortcutsView source codev4.3.8

#darkenergy

3 posts3 participants0 posts today
Public
bananabob :tinoflag:

Can't remember if this was posted on Mastodon or I found it elsewhere but it sure is interesting and makes the brain hurt thinking about it all.

<< A competing theory to 'dark energy' suggests the universe has different time zones >>

I have always had a feeling that Dark Energy was not the answer. But what do I know, I barely got a physics 'O' Level in the UK.

cbc.ca/radio/quirks/dark-energ

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.
#CBCRadio#DarkEnergy#TimeScape
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
Public
earthling

"However, that might not happen. We might search and make no headway in understanding the situation. If that happens, we would need to rethink not just our research, but the study of cosmology itself. We would need to find an entirely new cosmological model, one that works as well as our current one but that also explains this discrepancy. Needless to say, it would be a tall order."

singularityhub.com/2025/04/12/

#cosmology
#universe
#DarkEnergy

Flammarion engraving 1888 https://en.wikipedia.org/wiki/Flammarion_engraving
Replied in thread
Public
KilleansRow 🇺🇲 🇺🇦🍀

@ThreeSigma #StringTheories do and will make testable predictions now and in the future, including for #CMB signature search (right now),#DarkEnergy and #DarkMatter , all well up above Planck. More importantly strings have given us tools that help us think in spacetime topologies that might upset the apple cart.Strings functionally unified quantum mechanics and gravity for the first time ever in one of those. The tools of string theory have wide application in unifying math and physics elsewhere

Public
Levka

#DarkEnergy

"An international team of astronomers on Wednesday unveiled the most compelling evidence to date that dark energy — a mysterious phenomenon pushing our universe to expand ever faster — is not a constant force of nature but one that ebbs and flows through cosmic time.

Dark energy, the new measurement suggests, may not resign our universe to a fate of being ripped apart across every scale, from galaxy clusters down to atomic nuclei. Instead, its expansion could wane, eventually leaving the universe stable. Or the cosmos could even reverse course, eventually doomed to a collapse that astronomers refer to as the Big Crunch.

The latest results bolster a tantalizing hint from last April that something was awry with the standard model of cosmology, scientists’ best theory of the history and the structure of the universe. The measurements, from last year and this month, come from a collaboration running the Dark Energy Spectroscopic Instrument, or DESI, on a telescope at Kitt Peak National Observatory in Arizona."

nytimes.com/2025/03/19/science

The New York Times · Astronomers Get ‘More Than a Hint’ That Dark Energy Isn’t What They ThoughtBy Katrina Miller
Public
ahimsa

Here's some DESI news for you!

No, not that kind of Desi, I'm talking about research done by the Dark Energy Spectroscopic Instrument (DESI) 🔭

Report from Science Friday:

sciencefriday.com/segments/dar

"... it appears possible that dark energy—whatever it is—has changed over the lifetime of the universe. In other words, the so-called cosmological constant may not, in fact, be a constant."

Includes audio and transcript.

Science Friday · DESI Data Strengthens Evidence Of Change In Dark EnergyBy Emma Gometz
#Science#Space#DarkEnergy
Public *
IRAP

[Zoom on the #CosmicWeb] Have you dived into the deep fields of #Euclid revealed this Wednesday by the @ec_euclid ? Have you navigated between the thousands of #galaxies of different shapes, sizes, colors and masses? So many objects, near and far, fill our #Universe! sky.esa.int/esasky/?hide_welco

What if their spatial distribution could tell us something about two mysterious components : #DarkMatter and #DarkEnergy? This is the gamble taken by the scientists involved in the Euclid mission. To do so, they've designed some unrivalled #instruments: a camera with great depth of field and high resolution records the variety of shapes and spatial distribution of galaxies, while a #spectrometer coupled with a #photometer can determine the distances and masses of galaxies ...

Alain Blanchard, professor at the University of Toulouse and researcher at IRAP, comments on the consortium's first-ever publication of scientific data: irap.omp.eu/en/2025/03/euclid-

Euclid Deep Field South. Copyright ESA
ExploreLive feeds
About