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#hubbleconstant — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #hubbleconstant, aggregated by home.social.

  1. Physicists Have a Major Problem With the Universe

    Almost a century ago, famed astronomer Edwin Hubble determined that the universe is expanding at an accelerating rate.…
    #NewsBeep #News #Physics #AU #Australia #EdwinHubble #Hubbleconstant #measurements #Science #SpaceTelescopeScienceInstitute #StefanoCasertano
    newsbeep.com/au/615200/

  2. The Local Distance Network - A community consensus report on the measurement of the #HubbleConstant at ∼1% precision: aanda.org/component/article?ac - the result is 73.5+/-0.8 (essentially 74, as I've said for years :-) km/s/Mpc, in huge tension with the CMBR -> A community-built distance network sharpens the Hubble constant and broadens the evidence behind the “Hubble tension” / The Local Universe’s Expansion Rate Is Clearer Than Ever, but Still Doesn’t Add Up: issibern.ch/hubble-constant-pr / noirlab.edu/public/news/noirla

  3. The Stochastic Siren - Astrophysical Gravitational-Wave Background Measurements of the #HubbleConstant: arxiv.org/abs/2503.01997 -> Illinois and UChicago physicists develop a new method to measure the expansion rate of the universe: physics.illinois.edu/news/Hubb

  4. Munich astronomers imaged and modelled an exceptionally rare #supernova that could provide a new, independent way to measure how fast the #universe is expanding: go.tum.de/991366 🌌

    #hubbleconstant #cosmicexpansion #cosmology #astrophysics

    📷C. Saulder

  5. Join us for the latest lecture of "Wissenschaft für Alle"!
    What is the #HubbleConstant and how is it determined? Find out with Andreas Flörs (GSI/FAIR) 🌌
    German only.

    Online or on site as usual: Wednesday, 25 February 2026, 2 PM

    Online event: gsi-fair.zoom.us/j/98465545116
    Meeting-Code: wfa
    On site registration: indico.gsi.de/event/23430/regi
    Location: GSI/FAIR #Darmstadt

    © NASA, ESA, CSA, STScI
    #lecture #science #WissenschaftfürAlle #WfA #particleaccelerator #space

  6. Join us for the latest lecture of "Wissenschaft für Alle"!
    What is the #HubbleConstant and how is it determined? Find out with Andreas Flörs (GSI/FAIR) 🌌
    German only.

    Online or on site as usual: Wednesday, 25 February 2026, 2 PM

    Online event: gsi-fair.zoom.us/j/98465545116
    Meeting-Code: wfa
    On site registration: indico.gsi.de/event/23430/regi
    Location: GSI/FAIR #Darmstadt

    © NASA, ESA, CSA, STScI
    #lecture #science #WissenschaftfürAlle #WfA #particleaccelerator #space

  7. Join us for the latest lecture of "Wissenschaft für Alle"!
    What is the #HubbleConstant and how is it determined? Find out with Andreas Flörs (GSI/FAIR) 🌌
    German only.

    Online or on site as usual: Wednesday, 25 February 2026, 2 PM

    Online event: gsi-fair.zoom.us/j/98465545116
    Meeting-Code: wfa
    On site registration: indico.gsi.de/event/23430/regi
    Location: GSI/FAIR #Darmstadt

    © NASA, ESA, CSA, STScI
    #lecture #science #WissenschaftfürAlle #WfA #particleaccelerator #space

  8. Join us for the latest lecture of "Wissenschaft für Alle"!
    What is the #HubbleConstant and how is it determined? Find out with Andreas Flörs (GSI/FAIR) 🌌
    German only.

    Online or on site as usual: Wednesday, 25 February 2026, 2 PM

    Online event: gsi-fair.zoom.us/j/98465545116
    Meeting-Code: wfa
    On site registration: indico.gsi.de/event/23430/regi
    Location: GSI/FAIR #Darmstadt

    © NASA, ESA, CSA, STScI
    #lecture #science #WissenschaftfürAlle #WfA #particleaccelerator #space

  9. Join us for the latest lecture of "Wissenschaft für Alle"!
    What is the #HubbleConstant and how is it determined? Find out with Andreas Flörs (GSI/FAIR) 🌌
    German only.

    Online or on site as usual: Wednesday, 25 February 2026, 2 PM

    Online event: gsi-fair.zoom.us/j/98465545116
    Meeting-Code: wfa
    On site registration: indico.gsi.de/event/23430/regi
    Location: GSI/FAIR #Darmstadt

    © NASA, ESA, CSA, STScI
    #lecture #science #WissenschaftfürAlle #WfA #particleaccelerator #space

  10. The James Webb telescope confirms a troubling mystery about the universe’s expansion

    The James Webb Space Telescope, working alongside Hubble, has uncovered an unsettling contradiction about how fast the universe…
    #NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Space #Cosmology #HubbleConstant #jameswebbtelescope #Science
    newsbeep.com/us/430252/

  11. The James Webb telescope confirms a troubling mystery about the universe’s expansion

    The James Webb Space Telescope, working alongside Hubble, has uncovered an unsettling contradiction about how fast the universe…
    #NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Space #Cosmology #HubbleConstant #jameswebbtelescope #Science
    newsbeep.com/us/430252/

  12. The James Webb telescope confirms a troubling mystery about the universe’s expansion

    The James Webb Space Telescope, working alongside Hubble, has uncovered an unsettling contradiction about how fast the universe…
    #NewsBeep #News #Space #CA #Canada #Cosmology #Hubbleconstant #jameswebbtelescope #Science
    newsbeep.com/ca/433686/

  13. The James Webb telescope confirms a troubling mystery about the universe’s expansion

    The James Webb Space Telescope, working alongside Hubble, has uncovered an unsettling contradiction about how fast the universe…
    #NewsBeep #News #Space #AU #Australia #Cosmology #Hubbleconstant #jameswebbtelescope #Science
    newsbeep.com/au/437871/

  14. So I’m reading an article in New Scientist about problems nailing down the #HubbleConstant and I thought, if the universe is expanding, as in adding new space where there already is some, why isn’t everything expanding with it? All I can think of is, it’s gravity doing it, keeping localized bits of matter together, from subatomic particles to galaxies in size, essentially fighting an epic, mythic battle against The Expansion. Which side are dark energy & dark matter on?

  15. Carnegie Supernova Project - Fast-Declining Type Ia Supernovae as Cosmological Distance Indicators: arxiv.org/abs/2509.07093 -> thread x.com/DScol/status/19657835104 -> the #HubbleConstant is ... 75!

  16. #Cosmology

    The Perfect Host: JWST Cepheid Observations in a Background-Free SN Ia Host Confirm No Bias in Hubble-Constant Measurements

    by Adam Riess and co-authors
    arxiv.org/abs/2509.01667

    #HubbleTension #HubbleConstant #Astrodon #science #jwst

  17. in the #arXiv

    Prior-free cosmological parameter estimation of Cosmicflows-4

    The analysis suggests a Hubble constant value of 75.8±0.4 km/s /Mpc, exacerbating (or independently confirming) the existing "Hubble Tension".

    by Chaimongkol Duangchan and co-authors
    arxiv.org/abs/2507.22236

    #Cosmology #Cosmicflows #HubbleConstant #HubbleTension #Astrophysics #Astrodon #galaxies #physics #science

  18. in the #arXiv

    Prior-free cosmological parameter estimation of Cosmicflows-4

    The analysis suggests a Hubble constant value of 75.8±0.4 km/s /Mpc, exacerbating (or independently confirming) the existing "Hubble Tension".

    by Chaimongkol Duangchan and co-authors
    arxiv.org/abs/2507.22236

    #Cosmology #Cosmicflows #HubbleConstant #HubbleTension #Astrophysics #Astrodon #galaxies #physics #science

  19. in the #arXiv

    Prior-free cosmological parameter estimation of Cosmicflows-4

    The analysis suggests a Hubble constant value of 75.8±0.4 km/s /Mpc, exacerbating (or independently confirming) the existing "Hubble Tension".

    by Chaimongkol Duangchan and co-authors
    arxiv.org/abs/2507.22236

    #Cosmology #Cosmicflows #HubbleConstant #HubbleTension #Astrophysics #Astrodon #galaxies #physics #science

  20. in the #arXiv

    Prior-free cosmological parameter estimation of Cosmicflows-4

    The analysis suggests a Hubble constant value of 75.8±0.4 km/s /Mpc, exacerbating (or independently confirming) the existing "Hubble Tension".

    by Chaimongkol Duangchan and co-authors
    arxiv.org/abs/2507.22236

    #Cosmology #Cosmicflows #HubbleConstant #HubbleTension #Astrophysics #Astrodon #galaxies #physics #science

  21. in the #arXiv

    Prior-free cosmological parameter estimation of Cosmicflows-4

    The analysis suggests a Hubble constant value of 75.8±0.4 km/s /Mpc, exacerbating (or independently confirming) the existing "Hubble Tension".

    by Chaimongkol Duangchan and co-authors
    arxiv.org/abs/2507.22236

    #Cosmology #Cosmicflows #HubbleConstant #HubbleTension #Astrophysics #Astrodon #galaxies #physics #science

  22. The Complete Sample of Available SNe Ia Luminosity Calibrations from the TRGB Observed with either HST or JWST: arxiv.org/abs/2504.08921 (spoiler: the 'local' #HubbleConstant is really 72 to 73 km/s/Mpc) -> thread x.com/DScol/status/19121849238

  23. #Cosmology

    Do ongoing tensions leave room for new physics?

    One century after Edwin Hubble revealed his astonishing discovery of a cosmos beyond the Milky Way, the most precise measurements still can’t agree on how fast galaxies are moving.

    By Wendy Freedman
    nature.com/articles/d41586-025

    #HubbleTension #HubbleConstant #Physics #Astronomy #Astrophysics #Astrodon #Science #STEM

  24. Turning the #Hubble tension into a crisis: New measurement confirms #universe is expanding too fast for current models
    The universe is expanding faster than predicted by theoretical models, and faster than can be explained by our current understanding of #physics.
    They arrived at a value for the #HubbleConstant of 76.5 kilometers per second per megaparsec which matches existing measurements, but not as our current understanding of physics predicts it.
    phys.org/news/2025-01-hubble-t