Astronomers have detected the magnetic signature surrounding a gamma-ray burst afterglow for the first time, opening a new way to study the extreme physics behind these cosmic explosions. The ...

Add Yahoo as a preferred source to see more of our stories on Google. The James Webb Space Telescope is weighing in on a longstanding debate over why we don’t see more of the most massive red ...

Scientists have detected the most distant supernova ever seen, exploding when the universe was less than a billion years old. The event was first signaled by a gamma-ray burst and later confirmed ...

Artist’s conception of a magnetar surrounded by an accretion disk that is wobbling, or precessing, because of the effects of general relativity. Some models of magnetars suggest that high-speed jets ...

Astronomers have caught a massive star exploding just moments after the universe emerged from the cosmic dark ages, shedding light on how the first stars were born and how they die. When stars run out ...

The universe is haunted by "cosmic ghosts" called neutrinos, which seem to be the "whispers" of stars that died in supernova ...