GRB

Follow-up observations from Webb confirm that GRB 250702B is the most energetic cosmic explosion ever recorded

Spatially resolved properties of the host galaxy GRB 250702B and supernova boundaries. Credit: arXiv (2025). DOI: 10.48550/arxiv.2509.22778 Given the immense…

4 hours ago

The longest GRB ever observed could be a cosmic event new to science

Astronomers report longest gamma-ray burst ever recorded, confirmed in new paper. The signal, labeled GRB 250702B, flashed for about 7…

1 day ago