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 ...
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 ...
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 ...
What is dark matter? That question is prominent in discussions about the nature of the universe. There are many proposed explanations for dark matter, both within the Standard Model and outside of it.