James Webb has spotted the most distant supernova ever seen, exploding just 730 million years after the Big Bang, offering ...

A flash of energetic light lasts only ten seconds, yet it has completely turned around our understanding of the timeline for ...

The James Webb Space Telescope has spotted a stellar explosion from a time when the cosmos was still in its infancy, catching ...

A mysterious cosmic explosion linked to gravitational waves may reveal a previously unknown type of supernova event - a ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: MARK GARLICK via Getty Images Astronomers have watched a massive star vanish in the night ...

The brightest burst of gamma rays ever recorded was caused by the collapse and explosion of a massive star—a supernova. That’s according to a paper published last week in Nature Astronomy that used ...

A superkilonova candidate event, named AT2025ulz, was observed in 2025; LIGO and Virgo first spotted gravitational waves, ...

In 2022, astronomers discovered the brightest gamma-ray burst (GRB) of all time. Now, astronomers confirm that a 'normal' supernova, the telltale sign of a stellar collapse, accompanied the GRB. The ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration shows a neutron star surrounded by green magnetic field lines in the fiery shell ...

University of Copenhagen astrophysicists help explain a mysterious phenomenon, whereby stars suddenly vanish from the night sky. An unusual binary star system shows that massive stars can completely ...

The most dangerous parts of a supernova explosion are the outputs like X-rays and gamma rays. Even though they only share a small fraction of a supernova's power, they are extremely dangerous. But ...

A supernova observed last year was so bright–about 100 times as luminous as a typical supernova–that it challenged the theoretical understanding of what causes supernovae. But Stan Woosley, professor ...