Galaxies à décalage vers le rouge élevé

MeerKAT Snags a 'Mega‑Laser' 8 Billion Light‑Years Away — The Signal Is Real, but Not a Beacon

A bright, short radio burst—called a 'mega‑laser'—was detected by South Africa's MeerKAT and traced to a merging galaxy 8+ billion light‑years away. Astronomers say the signal is … Mar 23, 2026

Space

Webb Finds 8.5‑Billion‑Year‑Old Jellyfish Galaxy

Using the James Webb Space Telescope, astronomers have identified the most distant 'jellyfish' galaxy yet — a galaxy caught being stripped of its gas 8.5 billion years ago, reshap… Fév 24, 2026

Space

JWST Reveals Celebrity Cluster MACS J1149

The James Webb Space Telescope has released a new, deep infrared image of the massive galaxy cluster MACS J1149.5+2223, showing dramatic gravitational lensing and revealing faint,… Jan 24, 2026

Science

JWST Sees Universe’s Earliest Supernova

James Webb Space Telescope observations identify a supernova linked to long gamma‑ray burst GRB 250314A at redshift ~7.3 — an explosion that occurred when the universe was about 7… Déc 14, 2025

Space

Webb May Have Spotted the First Stars

New JWST spectra have highlighted a handful of ultra‑distant, compact objects whose light matches predictions for hypothetical dark‑matter‑powered 'dark stars' — but the signal is… Nov 19, 2025

Galaxies à décalage vers le rouge élevé

Articles about Galaxies à décalage vers le rouge élevé

MeerKAT Snags a 'Mega‑Laser' 8 Billion Light‑Years Away — The Signal Is Real, but Not a Beacon

Webb Finds 8.5‑Billion‑Year‑Old Jellyfish Galaxy

JWST Reveals Celebrity Cluster MACS J1149

JWST Sees Universe’s Earliest Supernova

Webb May Have Spotted the First Stars