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 …

We review the progress in modeling the galaxy population in hydrodynamical simulations of
the ΛCDM cosmogony. State-of-the-art simulations now broadly reproduce the observed …

The H0LiCOW collaboration inferred via strong gravitational lensing time delays a Hubble
constant value of km s− 1 Mpc− 1, describing deflector mass density profiles by either a …

We present new measurements of rest-UV luminosity functions and angular correlation
functions from 4,100,221 galaxies at z∼ 2–7 identified in the Subaru/Hyper Suprime-Cam …

In our modern understanding of galaxy formation, every galaxy forms within a dark matter
halo. The formation and growth of galaxies over time is connected to the growth of the halos …

Galaxy formation is at the heart of our understanding of cosmic evolution. Although there is a
consensus that galaxies emerged from the expanding matter background by gravitational …

We present a blind time-delay strong lensing (TDSL) cosmographic analysis of the doubly
imaged quasar SDSS 1206+ 4332. We combine the relative time delay between the quasar …

We present a new parametric lens model for the massive galaxy cluster Abell 2744 based
on new ultra-deep JWST imaging taken in the framework of the UNCOVER program. These …

Abstract The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is
currently acquiring integral-field spectroscopy for the largest sample of galaxies to date. By …

The Λ CDM cosmology passes demanding tests that establish it as a good approximation to
reality. The theory is incomplete, of course, and open issues are being examined in active …