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 discovery of the accelerating universe in the late 1990s was a watershed moment in
modern cosmology, as it indicated the presence of a fundamentally new, dominant …

We present a new bound on the ultralight axion (ULA) dark matter mass ma, using the
Lyman-alpha forest to look for suppressed cosmic structure growth: a 95% lower limit ma> …

Abstract A flat Friedmann–Robertson–Walker universe dominated by a cosmological
constant (Λ) and cold dark matter (CDM) has been the working model preferred by …

Matter evolved under the influence of gravity from minuscule density fluctuations.
Nonperturbative structure formed hierarchically over all scales and developed non …

ABSTRACT We combine Dark Energy Survey Year 1 clustering and weak lensing data with
baryon acoustic oscillations and Big Bang nucleosynthesis experiments to constrain the …

We present the first model-agnostic analysis of the complete set of Sloan Digital Sky Survey
III (BOSS) and-IV (eBOSS) catalogues of luminous red galaxy and quasar clustering in the …

Various theories have been proposed for the nature of dark energy. It is therefore essential
to directly verify or rule out these theories by experiment. Despite substantial efforts in …

In the standard (classic) approach, galaxy clustering measurements from spectroscopic
surveys are compressed into baryon acoustic oscillations and redshift space distortions …

We set the strongest limits to date on the velocity-independent dark matter (DM)–proton
cross section σ for DM masses m= 10 keV to 100 GeV, using large-scale structure traced by …