Abstract The standard Λ Cold Dark Matter (ΛCDM) cosmological model provides a good
description of a wide range of astrophysical and cosmological data. However, there are a …

A number of challenges to the standard Λ CDM model have been emerging during the past
few years as the accuracy of cosmological observations improves. In this review we discuss …

The cosmological principle (CP)—the notion that the Universe is spatially isotropic and
homogeneous on large scales—underlies a century of progress in cosmology. It is …

The Hubble tension has now grown to a level of significance which can no longer be
ignored and calls for a solution which, despite a huge number of attempts, has so far eluded …

We review the landscape of QCD axion models. Theoretical constructions that extend the
window for the axion mass and couplings beyond conventional regions are highlighted and …

We analyse the clustering of the Sloan Digital Sky Survey IV extended Baryon Oscillation
Spectroscopic Survey Data Release 16 luminous red galaxy sample (DR16 eBOSS LRG) in …

Aims. The Euclid space telescope will measure the shapes and redshifts of galaxies to
reconstruct the expansion history of the Universe and the growth of cosmic structures. The …

Aims: The Euclid space telescope will measure the shapes and redshifts of galaxies to
reconstruct the expansion history of the Universe and the growth of cosmic structures. The …

Most of the free parameters in the Standard Model (SM)—a quantum field theory which has
successfully elucidated the behaviors of strong, weak and electromagnetic interactions of all …

We present a detection of correlated clustering between MeerKAT radio intensity maps and
galaxies from the WiggleZ Dark Energy Survey. We find a 7.7 σ detection of the cross …