Visible matter constitutes only 16% of the universe's total mass. Little is known about the nature of the rest of that mass, which referred to as dark matter. Even more surprising is the fact that the ...

A recent study published on arXiv has revealed a black hole so massive and so ancient that it challenges long-standing models of how such cosmic giants form. Detected by Boyuan Liu and colleagues from ...

Primordial black holes are hypothetical compact objects formed by the gravitational collapse of large density fluctuations in the early Universe. Their masses span many orders of magnitude, determined ...

Primordial holes formed in the exotic conditions of the big bang may have become their own source of matter and radiation. But new research, now published on the arXiv preprint server, suggests that ...

"This gives us a new way to rule out certain black hole scenarios for dark matter." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. New research ...

The formation of the first, or Population III, stars marked a pivotal epoch in cosmic history. Emerging in dark matter minihalos at redshifts of around 20–30, these metal-free objects arose from the ...

The search for dark matter requires all the best models, theories, and ideas we can throw at it. A new paper by Julia Monika Koulen, Stefano Profumo, and Nolan Smyth from the University of California ...