For decades, one of the biggest questions in cosmology has remained frustratingly out of reach: what, if anything, existed ...

Dark matter halos are everywhere in the universe, yet no telescope can see them. These vast, invisible structures surround ...

Dark matter is often portrayed as a cosmic loner, interacting with itself and the rest of the universe only through gravity. But what if dark matter particles also exert a hidden force on one another?

A stunningly concentrated and hefty galaxy cluster, from a time in the universe's history when such massive structures aren't ...

New DESI-inspired research suggests dark energy may evolve over time and cross the mysterious "phantom divide," potentially ...

In the recent decade, progress in black hole (BH) physics has been driven by landmark experimental achievements — from the first observation of ...

Kanazawa, Japan - The expansion of the Universe has occupied the minds of astronomers and astrophysicists for decades. Among the cosmological models that have been suggested over the years, Lambda ...

It's hard to get a sense of the scale of the universe from our little corner of it, but scientists realized decades back that the universe is expanding. This naturally led to questions about the ...

Conventional cosmology rests on the assumption of large-scale homogeneity and isotropy as enshrined in the Friedmann–Lemaître–Robertson–Walker framework. Inhomogeneous cosmological models relax this ...

Cosmological models with varying fundamental constants explore the possibility that quantities traditionally regarded as immutable—such as the speed of light (c), Newton’s gravitational constant (G) ...

Our ideas about the Universe are based on a century-old simplification known as the cosmological principle. It suggests that when averaged on large scales, the Cosmos is homogeneous and matter is ...

A holographic cosmological model with a power-law term has been proposed by a researcher to study thermodynamic properties on the horizon of the Universe. This model was found to satisfy the second ...