raios gama

Unexplained Deep‑Space Signal from 8 Billion Light‑Years

An unprecedented gamma‑ray burst detected on 2 July 2025 — GRB 250702B — produced hours‑long high‑energy emission from a dusty galaxy 8 billion light‑years away. Astronomers say t… Dez 16, 2025

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… Dez 14, 2025

Science

A Possible First Direct Signal of Dark Matter

A reanalysis of 15 years of Fermi gamma‑ray data has uncovered a halo‑shaped excess of ~20 GeV photons toward the Milky Way center that a Japanese team says matches expectations f… Nov 28, 2025

Space

Study suggests new gamma-ray signal may be first direct sign of dark matter

A newly detected glow of high-energy light near the Milky Way’s centre matches long-standing predictions for dark matter annihilation, raising the most credible signal yet of the … Nov 26, 2025

raios gama

Articles about raios gama

Unexplained Deep‑Space Signal from 8 Billion Light‑Years

JWST Sees Universe’s Earliest Supernova

A Possible First Direct Signal of Dark Matter

Study suggests new gamma-ray signal may be first direct sign of dark matter