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 …

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 …

Photonic technologies offer numerous functionalities that can be used to realize
astrophotonic instruments. The most spectacular example to date is the ESO Gravity …

In the current work, we have implemented an extension of the standard Gaussian Process
formalism, namely the Multi-Task Gaussian Process with the ability to perform a joint …

We present the status of the Dark Energy Spectroscopic Instrument (DESI) and its plans and
opportunities for the coming decade. DESI construction and its initial five years of operations …

The development of the Skipper-charge-coupled devices (Skipper-CCDs) has been a major
technological breakthrough for sensing very weak ionizing particles. The sensor allows to …

Modified Gravity theories generally affect the Poisson equation and the gravitational slip in
an observable way, that can be parameterized by two generic functions (η and μ) of time and …

In this work we present updated forecasts on parameterised modifications of gravity that can
capture deviations of the behaviour of cosmological density perturbations beyond Λ CDM …