• OT: Dark energy 'does not exists'

    From Jan Panteltje@21:1/5 to All on Sun Jan 12 05:39:55 2025
    Dark energy 'doesn't exist' so can't be pushing 'lumpy' Universe apart
    https://www.sciencedaily.com/releases/2024/12/241220133038.htm
    Source:
    Royal Astronomical Society
    Summary:
    One of the biggest mysteries in science -- dark energy -- doesn't actually exist,
    according to researchers looking to solve the riddle of how the Universe is expanding.
    For the past 100 years, physicists have generally assumed that the cosmos is growing
    equally in all directions.
    They employed the concept of dark energy as a placeholder to explain unknown physics
    they couldn't understand, but the contentious theory has always had its problems.
    Now a team of physicists and astronomers are challenging the status quo,
    using improved analysis of supernovae light curves to show that the Universe
    is expanding in a more varied, 'lumpier' way.

    All about clocks running faster in empty space....

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Martin Brown@21:1/5 to Jan Panteltje on Sun Jan 12 10:46:50 2025
    On 12/01/2025 05:39, Jan Panteltje wrote:
    Dark energy 'doesn't exist' so can't be pushing 'lumpy' Universe apart
    https://www.sciencedaily.com/releases/2024/12/241220133038.htm
    Source:
    Royal Astronomical Society
    Summary:
    One of the biggest mysteries in science -- dark energy -- doesn't actually exist,
    according to researchers looking to solve the riddle of how the Universe is expanding.
    For the past 100 years, physicists have generally assumed that the cosmos is growing
    equally in all directions.
    They employed the concept of dark energy as a placeholder to explain unknown physics
    they couldn't understand, but the contentious theory has always had its problems.
    Now a team of physicists and astronomers are challenging the status quo,
    using improved analysis of supernovae light curves to show that the Universe
    is expanding in a more varied, 'lumpier' way.

    All about clocks running faster in empty space....

    More accurately about clocks running slower in deep gravitational
    potential wells, but that effect seems to me way too small to account
    for the apparent acceleration seen in galaxies at ultra high redshift.

    The original paper is online here free access (all 24 pages of it):

    https://academic.oup.com/mnras/article/533/3/2615/7737665

    Not an easy read. lambdaCDM still fits at least as well...

    --
    Martin Brown

    --- SoupGate-Win32 v1.05
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  • From Jan Panteltje@21:1/5 to '''newspam'''@nonad.co.uk on Sun Jan 12 12:55:58 2025
    On a sunny day (Sun, 12 Jan 2025 10:46:50 +0000) it happened Martin Brown <'''newspam'''@nonad.co.uk> wrote in <vm06iq$145qk$1@dont-email.me>:

    On 12/01/2025 05:39, Jan Panteltje wrote:
    Dark energy 'doesn't exist' so can't be pushing 'lumpy' Universe apart
    https://www.sciencedaily.com/releases/2024/12/241220133038.htm
    Source:
    Royal Astronomical Society
    Summary:
    One of the biggest mysteries in science -- dark energy -- doesn't actually exist,
    according to researchers looking to solve the riddle of how the Universe is expanding.
    For the past 100 years, physicists have generally assumed that the cosmos is growing
    equally in all directions.
    They employed the concept of dark energy as a placeholder to explain unknown physics
    they couldn't understand, but the contentious theory has always had its problems.
    Now a team of physicists and astronomers are challenging the status quo, >> using improved analysis of supernovae light curves to show that the Universe
    is expanding in a more varied, 'lumpier' way.

    All about clocks running faster in empty space....

    More accurately about clocks running slower in deep gravitational
    potential wells, but that effect seems to me way too small to account
    for the apparent acceleration seen in galaxies at ultra high redshift.

    I still think Le Sage, but then I am no astrophysicist.
    Just a simple cosmic fireworks explosion?
    Big mass thing explodes, spits out black holes of all sorts that then spit out matter and stars?
    CERN paper about space being filled with a fluid?



    The original paper is online here free access (all 24 pages of it):

    https://academic.oup.com/mnras/article/533/3/2615/7737665

    Got it, downladed it as pdf.


    Not an easy read. lambdaCDM still fits at least as well...

    Indeed, lots of stuff to look up.


    I was thinking about downloading some SETI data and have a go at finding extraterrestrial signalsin it.
    https://breakthroughinitiatives.org/opendatasearch
    But I want raw data...
    Anybody here done anything like that?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Don@21:1/5 to Jan Panteltje on Sun Jan 12 14:17:22 2025
    Jan Panteltje <alien@comet.invalid> wrote:
    Dark energy 'doesn't exist' so can't be pushing 'lumpy' Universe apart
    https://www.sciencedaily.com/releases/2024/12/241220133038.htm
    Source:
    Royal Astronomical Society
    Summary:
    One of the biggest mysteries in science -- dark energy -- doesn't actually exist,
    according to researchers looking to solve the riddle of how the Universe is expanding.
    For the past 100 years, physicists have generally assumed that the cosmos is growing
    equally in all directions.
    They employed the concept of dark energy as a placeholder to explain unknown physics
    they couldn't understand, but the contentious theory has always had its problems.
    Now a team of physicists and astronomers are challenging the status quo,
    using improved analysis of supernovae light curves to show that the Universe
    is expanding in a more varied, 'lumpier' way.

    All about clocks running faster in empty space....

    Here's some comic relief:

    Do you know how to make 1 + 1 = 3?

    You add a dark 1:

    1 + 1 + dark 1 = 3

    Danke,

    --
    Don, KB7RPU, https://www.qsl.net/kb7rpu
    There was a young lady named Bright Whose speed was far faster than light;
    She set out one day In a relative way And returned on the previous night.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to g@crcomp.net on Mon Jan 13 06:52:57 2025
    On a sunny day (Sun, 12 Jan 2025 14:17:22 -0000 (UTC)) it happened "Don" <g@crcomp.net> wrote in <20250112b@crcomp.net>:

    Jan Panteltje <alien@comet.invalid> wrote:
    Dark energy 'doesn't exist' so can't be pushing 'lumpy' Universe apart
    https://www.sciencedaily.com/releases/2024/12/241220133038.htm
    Source:
    Royal Astronomical Society
    Summary:
    One of the biggest mysteries in science -- dark energy -- doesn't actually exist,
    according to researchers looking to solve the riddle of how the Universe is expanding.
    For the past 100 years, physicists have generally assumed that the cosmos is growing
    equally in all directions.
    They employed the concept of dark energy as a placeholder to explain unknown physics
    they couldn't understand, but the contentious theory has always had its problems.
    Now a team of physicists and astronomers are challenging the status quo,
    using improved analysis of supernovae light curves to show that the Universe
    is expanding in a more varied, 'lumpier' way.

    All about clocks running faster in empty space....

    Here's some comic relief:

    Do you know how to make 1 + 1 = 3?

    You add a dark 1:

    1 + 1 + dark 1 = 3

    Danke,

    2 ones make 11 eleven
    or makes 3 for binary types.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)