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Submission + - MOND isn't dead yet: Paper argues that gravity changes at very low accelerations 6

Submitted by porkchop_d_clown
porkchop_d_clown writes: MOND — MOdified Newtonian Dynamics is a hypothesis that Newton's law of gravity is incorrect under some conditions. Now a paper published at https://iopscience.iop.org/art... (and summarized at https://phys.org/news/2024-01-...) claims that a study does indeed show that pairs of widely separated binary stars do show a deviation from Newton's Second Law, arguing that, at very low levels, gravity is stronger than the law predicts.
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MOND isn't dead yet: Paper argues that gravity changes at very low accelerations More

MOND isn't dead yet: Paper argues that gravity changes at very low accelerations

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  • OTOH I saw an article about a month ago that argued that such binaries rule out MOND. So I guess the verdict isn't in yet.

    But I do wonder what MOND supporters say about galaxies without dark matter.

  • YouTubing-astrophysicist Dr Becky considered this report a couple of months ago [youtube.com] (2023-Nov-09), under the title "HUGE blow for alternate theory of gravity MOND". At the very least, astrophysicists and cosmologists are deeply undecided whether this data supports or discourages MOND. (Shortened comment because verification problem.)
    • Second part of blocked submission.

      Last week, I updated my annual count of MOND [blogspot.com] and other "alternative gravity" publications. While research on MOND (and others) continues, and any "suppression" the tin-foil-hat brigade want to scream about is ineffective, it remains an unpopular (not-equal-to "suppressed") field. Generally, astronomical publication counts are increasing, and MOND sticks with that trend. If anything is becoming more popular, it's the "MOG" type of "MOdified Gravity".

      Obviously, two links is

      • ISTM that Kuhn was right about one thing: MOND, BAND, and "the asteroid didn't do it" aren't going to go away until a generation of scientists expire.

        • BAND ?

          MOND, as a cure-all is still being looked at, but it's neither popular, not notably successful - and it has competitors.

          "The asteroid" being the Chicxulub impactor? It certainly wasn't a good-hair day for anyone, but whether that means it was the reason for the demise of some dinosaurs (and all ammonites, and mosasaurs in the sea, several entire families of foraminifera, but not other families of foraminifera, and shed-loads of other microfossils [microfossil-forming organisms], but not shed-loads o

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