Another day, another dark matter theory:
The mysterious matter may have come from quantum bags that got squished together in the early universe.
Dark matter — the mysterious substance that exerts gravity but doesn’t interact with light — might be made of tiny black holes permeating the universe. And according to a new theory, those black holes might have been made from Fermi balls, or quantum “bags” of subatomic particles known as fermions that got smooshed together in dense pockets during the universe’s infancy.
The theory could explain why dark matter came to dominate the universe.
“We find that in some cases, the Fermi balls are so dense that the fermions are too close to each other, triggering the collapse of a Fermi ball [in]to a black hole,” Ke-Pan Xie, a researcher at the Center for Theoretical Physics at Seoul National University in South Korea, told Live Science.
Paul Sutter, “Is dark matter made of ‘Fermi balls’ forged in the Big Bang?” at Space.com (September 2, 2021)
Unless we are on the wrong track altogether. We shall see.
You may also wish to read:
Discover: Even the best dark matter theories are crumbling
Researcher: The search for dark matter has become a “quagmire of confirmation bias” So many research areas in science today are hitting hard barriers that it is reasonable to think that we are missing something.
Physicists devise test to find out if dark matter really exists
Largest particle detector draws a blank on dark matter
What if dark matter just doesn’t stick to the rules?
A proposed dark matter solution makes gravity an illusion
and
Proposed dark matter solution: “Gravity is not a fundamental governance of our universe, but a reaction to the makeup of a given environment.”