Recent years have witnessed a rise in interest in the geometrical trinity of General Relativity
and its extensions. This interest has been fuelled by novel insights into the nature of gravity …

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 …

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 …

Abstract The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders
about the fundamental theory of nature at play in the extreme gravity regime, where the …

Abstract LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation
from cosmic background Radiation Detection, is a space mission for primordial cosmology …

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 …

Clusters of galaxies can be used as powerful probes to study astrophysical processes on
large scales, test theories of the growth of structure, and constrain cosmological models. The …

We present the cosmological implications from final measurements of clustering using
galaxies, quasars, and Ly α forests from the completed Sloan Digital Sky Survey (SDSS) …

This Letter reports on a cavity haloscope search for dark matter axions in the Galactic halo in
the mass range 2.81–3.31 μ eV. This search utilizes the combination of a low-noise …

We present angular power spectra and cosmological parameter constraints derived from the
Planck PR4 (NPIPE) maps of the cosmic microwave background. NPIPE, released by the …