MEGATRON simulations connect the first stars with the universe’s smallest galaxies
MEGATRON simulations offer a possible explanation for the similar iron content of many of the smallest galaxies.Radiation delayed…
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…
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…
Webb Find Hidden Stars Making Early Galaxies Far More Massive than Thought
Astronomers using the NASA/ESA/CSA James Webb Space Telescope have revealed a surprisingly large population of faint, low-mass stars…
Mysterious ‘Little Red Dots’ Could Be Tiny Galaxies with Giant Black Holes at Their Hearts
The mysterious objects spotted in the early Universe may not be isolated points of light after all. A…
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…
Rocky Planets May Have Started Forming Just 100 Million Years after Big Bang
New simulations suggest supernova explosions of the Universe’s first stars scattered the ingredients for rocky planets only 100…
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…