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 …

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 …

We study the large-scale anisotropy of the universe by measuring the dipole in the angular
distribution of a flux-limited, all-sky sample of 1.36 million quasars observed by the Wide …

Abstract The Zwicky Transient Facility (ZTF), a public–private enterprise, is a new time-
domain survey employing a dedicated camera on the Palomar 48-inch Schmidt telescope …

In the late 1990's, observations of two directionally-skewed samples of, in total, 93 Type Ia
supernovae were analysed in the framework of the Friedmann–Lemaître–Robertson–Walker …

The isotropy of the late Universe and consequently of the X-ray galaxy cluster scaling
relations is an assumption greatly used in astronomy. However, within the last decade, many …

Observations reveal a “bulk flow” in the local Universe which is faster and extends to much
larger scales than are expected around a typical observer in the standard ΛCDM cosmology …

The hypothesis that the late Universe is isotropic and homogeneous is adopted by most
cosmological studies, including studies of galaxy clusters. The cosmic expansion rate H 0 is …

Major advances in our understanding of the universe have historically arisen from dramatic
improvements in our ability to “see.” We have developed progressively larger telescopes …

JCW had long wanted to write a new monograph on supernovae. Despite an immense
explosion in the literature and many review articles, there had not been one since that of …