Cold material clouds near the center of the Milky Way can open new paths to cosmology and physics.

"High-resolution observations of the Milky Way’s Fermi bubbles have revealed dense, cold hydrogen clouds embedded within a superheated outflow, indicating that these colossal structures formed in a rapid, recent event. Credit: Stock" (ScitechDaily, “Impossible” Cold Clouds Discovered in Milky Way’s Heart Challenge Astronomical Theories)

New observations about cold material clouds near the Milky Way’s center are challenging astronomical theories. Or maybe they tell more about conditions in those extreme areas than anybody expected. The Milky Way center is a very high-energy area. That means the material should be hot near Sagittarius A. When researchers find something very cold near that supermassive black hole there is a possibility that something simply pulls or pushes energy through that material. 

If things like quarks or something similar small, weakly interacting particles travel through material that thing can cause the effect that those neutrinos, etc. will transport energy out from that material. So something acts like a thermal pump. 

And there is a small possibility that dark energy is the thing that turns those material clouds into cold. If we think about the cases of dark dwarf stars near the center of the Milky Way. Collect dark matter and make them impact or annihilate, those particles can send so much dark energy that it pushes visible energy out from those cold material clouds. 

"An artist’s depiction of the relative sizes of the sun, a low mass star, a brown dwarf, Jupiter, and the Earth. Sizes are to scale, but distances are not. Credit: Jupiter: NASA, ESA, and A. Simon (NASA, GSFC). Sun and Low-Mass Star: NASA, SDO. Brown Dwarf: NASA, ESA, and JPL-Caltech. Earth: NASA. Infographic: NASA and E. Wheatley (STScI)" (Phys.org, Dark matter could create dark dwarfs at the center of the Milky Way)

The dark dwarf can collect so much dark matter, that the impacts of dark matter. Or, weakly interacting massive particles, WIMPs happen so often that they send so much dark energy that it creates visible interaction between dark and visible material. If that is true of the dark matter particles, WIMPs’ impacts are the source of dark energy. And maybe that thing can change our view of dark matter and dark energy. 

Dark matter interaction through gravity is a well-known thing. That means gravity centers pack dark matter around them. The gravity centers like Sgr A* are the ultimate objects in the universe. That kind of ultimate gravity center can collect and pack dark matter into such a dense form that impacts between those particles happen so often, and they can create visible interaction with other objects and particles. This means that dark matter and dark energy also have some electromagnetic-style interactions with visible material. The only known interaction is gravitational. 

But the “shine” of visible material covers that interaction with it. Things like dark dwarfs are very dense objects that can collect the dark matter and its radiation into them. And there is a possibility that there is a dark dwarf near the center of the Milky Way that gets its energy from dark matter. The dark dwarf is the massive object that formed when a brown dwarf used up its fuel. This dark dwarf location near Sgr A* is also special. The dark dwarf pulls dark matter around it the another dark matter flow that Sgr A* pulls to it impacts that dark matter whirl. That causes impacts or even annihilation that turns dark matter very hot. 

And the ultimate high energy that Sgr A* sends can also interact with those WIMP particles. The model goes like this: the dark matter particles, hypothetical WIMPs, are so small that they send so short-wave radiation that we have no ability to observe that radiation. That means the dark energy can be a wave movement outside the gamma-rays. And if that is true it can open new visions for cosmology and space research. 

https://nasaspacenews.com/2025/07/dark-dwarfs-the-cosmic-clue-that-could-reveal-dark-matters-secrets/

https://phys.org/news/2025-07-dark-dwarfs-center-milky.html

https://scitechdaily.com/impossible-cold-clouds-discovered-in-milky-ways-heart-challenge-astronomical-theories/