Study claims to provide first direct evidence of dark matter

The signal "closely matches the properties of gamma-ray radiation predicted to be emitted by dark matter," Totani told the Guardian. Details are published in the Journal of Cosmology and Astroparticle Physics. 

https://www.theguardian.com/science/2025/nov/25/study-claims-to-provide-first-direct-evidence-of-dark-matter

Controversial new theory of gravity rules out need for dark matter

"We show that it can explain the expansion of the universe and galactic rotation curves without the need for dark matter or dark energy," Oppenheim said on X. "We do urge caution, however, since there is other indirect evidence for dark matter, so further calculations and comparison with data are needed. But if it holds, it would appear that 95% of the energy in the universe is due to the erratic nature of spacetime, signalling either a fundamental breakdown in predictability of physics, or we are immersed in an environment which does not obey the laws of classical or quantum theory." 

Not everyone is convinced, including the well-known theorists Prof Carlo Rovelli and Prof Geoff Penington, who have signed a 5,000:1 odds bet with Oppenheim against his theory being proven correct. 

"I think it's good that physicists explore a wide variety of approaches to very difficult problems like combining quantum mechanics with gravity," said Penington…

https://www.theguardian.com/science/2024/mar/09/controversial-new-theory-of-gravity-rules-out-need-for-dark-matter

Michio Kaku — The God Equation: The Quest for a Theory of Everything (The Michael Shermer Show podcast 170)

Synthesizing relativity and quantum theory would be the crowning achievement of science, a profound merging of all the forces of nature into one beautiful, magnificent equation to unlock the deepest mysteries in science. In this episode, Michael Shermer speaks with professor of theoretical physics Michio Kaku about: the Big Bang, black holes, worm holes, the multiverse, time travel, dark energy and dark matter, gravity, string theory, ETIs, meaning, and God.

Interview: 

https://www.podbean.com/ew/dir-pnmq3-db76397

It turns out Albert Einstein was pretty smart after all - CNN

While general relativity has been accepted as a theory that applies to our solar system, the scope of its effect on a larger scale has until now been a mystery, writes Don Lincoln ....
https://www.cnn.com/2018/06/26/opinions/einstein-ring-opinion-lincoln/index.html

What Astronomers Wish Everyone Knew About Dark Matter And Dark Energy

If you go by what's often reported in the news, you'd be under the impression that dark matter and dark energy are houses of cards just waiting to be blown down. Theorists are constantly exploring other options; individual galaxies and their satellites arguably favor some modification of gravity to dark matter; there are big controversies over just how fast the Universe is expanding, and the conclusions we've drawn from supernova data may need to be altered.....

https://www.forbes.com/sites/startswithabang/2018/04/10/what-astronomers-wish-everyone-knew-about-dark-matter-and-dark-energy/#4626d9f375ae

Scientists discover a 'dark' Milky Way: Massive galaxy consists almost entirely of dark matter

Using the world's most powerful telescopes, an international team of astronomers has found a massive galaxy that consists almost entirely of dark matter. The galaxy, Dragonfly 44, is located in the nearby Coma constellation and had been overlooked until last year because of its unusual composition: It is a diffuse "blob" about the size of the Milky Way, but with far fewer stars.

"Very soon after its discovery, we realized this galaxy had to be more than meets the eye. It has so few stars that it would quickly be ripped apart unless something was holding it together," said Yale University astronomer Pieter van Dokkum, lead author of a paper in the Astrophysical Journal Letters....

How Dark Matter Shapes Galaxies

Astronomer Katey Alatalo describes how dark matter disrupts stars...