Record-Breaking Fast Radio Burst from Early Universe Traced to Tiny, Star-Forming Galaxy
This fast radio burst, designated FRB 20240304B, is the most distant ever detected, having traveled more than 10…
Reduced incidence of little red dots at z < 3 based on number density and halo mass evolution
Labbé, I. et al. A population of red candidate massive galaxies 600 Myr after the Big Bang. Nature…
Early metal-enriched baryon cycling before the midpoint of cosmic reionization
Observations and data reduction The data analysed in this work were obtained as part of the JWST Cycle…
Supercomputer simulations may finally explain Webb’s mysterious Little Red Dots
Simulations suggest many of JWST’s Little Red Dots could be rapidly growing black holes surrounded by extraordinarily dense…
Overmassive black holes and little red dots naturally form in simulations
Our cosmological initial conditions are based on the simulation Phi-4096 of ref. 51. In this work, a dark-matter-only N-body…
A cosmic giant 5,000 times the Milky Way’s mass emerges from the early Universe
Astronomers have reconstructed detailed three-dimensional maps of two enormous protoclusters seen when the universe was only about 2.1…
JWST finds mysterious red objects pairing up in the early universe
JWST images have revealed four candidate pairs of “little red dots,” compact early-universe objects increasingly associated with rapidly…
Extended components of little red dots in the rest-frame optical
Furtak, L. J. et al. JWST UNCOVER: extremely red and compact object at zphot = 7.6 triply imaged…
Cosmic plasma was supposed to rule out dark photons. Simulations say otherwise
A major limit on dark photon dark matter may be far weaker because early-universe plasma stops absorbing energy…
Vigorous turbulence driven by quasar-mode feedback in a cluster core
The X-Ray Imaging and Spectroscopy Mission (XRISM)1 is the successor to the Hitomi X-ray observatory2, which ceased operations…
Dark matter may be naturally tuned to a hidden fifth dimension
Dark matter appears to hold galaxies together, yet it has never shown itself directly. A new theory suggests…
New study reveals how dark matter formed shortly after the Big Bang
Dark matter may not have needed a calm, cold start to help build the universe. For decades, that…