- cross-posted to:
- hackernews@derp.foo
- technews@radiation.party
- science@kbin.social
What’s that saying again? Extraordinary claims require extraordinary evidence? I don’t think we’re quite there yet, but for all of you MOdified Newtonian Dynamics fans (and Dark Matter haters) out there here’s a bit of good news.
- Lilnino ( @Lilnino@beehaw.org ) English31•11 months ago
I hate this title, even though it’s a good article. It’s nothing to do with gravity “breaking down”; maybe oul the current THEORY of gravity breaking down. So annoying that titles need to be sensationalized.
- Chetzemoka ( @Chetzemoka@kbin.social ) 6•11 months ago
Well, it is a direct quote from the study, so maybe not the journalist’s fault this time:
“direct evidence for the breakdown of standard gravity at weak acceleration” and reveal “an immovable anomaly of gravity in favor of MOND-based modified gravity”
- jorge ( @jalda@sopuli.xyz ) 6•11 months ago
So it would be a breakdown of standard gravity, not of gravity full stop. Sensationalized headline.
Yeah, a better title would have been “new observations show gravity anomaly indicating that current dark matter theories are incomplete”, but you get fewer clicks with something like that, right?
- interolivary ( @interolivary@beehaw.org ) English6•11 months ago
Huh, this is interesting. I found a slightly more in depth article on this: https://www.universetoday.com/162749/evidence-for-modified-gravity-found-in-the-motions-of-binary-stars/
It’d be amazing if this actually led to something MoNDish being the prevalent theory of gravity. Wouldn’t that essentially explain dark matter?
- Chetzemoka ( @Chetzemoka@kbin.social ) 3•11 months ago
It could explain the observations of the orbits of stars around galactic centers that currently can’t be explained (stars move faster than current models predict), yes. It would be an alternate explanation for this anomaly than dark matter, which is the other proposed “if this exists, it would explain what we see” hypothesis.
- heluecht ( @heluecht@pirati.ca ) 4•11 months ago
@will_a113 I guess that I will wait for a summary by Dr. Becky.
- heluecht ( @heluecht@pirati.ca ) 1•11 months ago
@will_a113 BTW: In her monthly video she already announced that there will be a video about this in the coming days.
- interolivary ( @interolivary@beehaw.org ) English1•11 months ago
I found an article that’s more skeptical https://bigthink.com/starts-with-a-bang/binary-stars-prove-modified-gravity/. I’m no expert but it does make a good case for why this result might be suspect