A team of particle physicists from the University of Melbourne, the Australian National University, King’s College London and Fermi National Accelerator...
Ursa Major III/UNIONS 1 (UMa3/U1 for short) is the least luminous and lowest-mass Milky Way satellite ever discovered, and possibly one of the most dark...
University of Ottawa’s Professor Rajendra Gupta challenges the current theoretical model for the composition of the Universe by showing that, in fact,...
The formation of galaxies by gradual hierarchical co-assembly of baryons and cold dark matter halos is a fundamental paradigm underpinning modern astrophysics...
Mothra is a system of two supergiant stars in one of the extremely magnified galaxies behind the lensing galaxy cluster MACS J0416.1-2403.
Mothra is best...
The outer disk of our Milky Way Galaxy is warped and flared. Several mechanisms have been proposed to explain these phenomena, but none have reproduced...
The key to understanding the mystery of elusive dark matter could lie with the dark photon, a hypothetical dark sector particle proposed as a force carrier...
The first generation of stars in the Universe is yet to be observed. There are two leading theories for those objects: hydrogen burning Population III...
The Euclid spacecraft, built and operated by ESA, with contributions from NASA, lifted off from Cape Canaveral Space Force Station in Florida at 11:12...
New research from the University of Toronto suggests that the so-called clumpiness problem, which centers on the unexpectedly even distribution of matter...
The gravitationally lensed Supernova (SN) Refsdal was discovered by University of Minnesota astronomer Patrick Kelly in 2014 in the field of MACS J1149.6+2223,...
The Superpressure Balloon-borne Imaging Telescope (SuperBIT) — a collaboration between Durham University, the University of Toronto, Princeton University,...
Using data from NSF’s Atacama Cosmology Telescope, astronomers have produced the most detailed map of dark matter distributed across one quarter of the...
It has been suggested for a long time that dark matter would form a density spike around a black hole. However, no promising evidence has been observed...
The newly-discovered galaxy, SPT0418-SE, and its much larger companion, SPT0418-47, reside in a massive dark-matter halo with yet-to-be-discovered neighbors,...
In the HighlY Interactive ParticlE Relics (HYPER) model, some time after the formation of dark matter in the early Universe, the strength of its interaction...
Intracluster light is diffuse light from stars that are gravitationally bound not to individual member galaxies, but to the halo of galaxy clusters. In...
Antimatter particles such as positrons and antiprotons abound in the cosmos. Much less common are light antinuclei, composed of antiprotons and antineutrons,...
