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

Scientists have detected the most distant supernova ever seen, exploding when the universe was less than a billion years old.

The combination of a supernova and a kilonova may have produced a rare space explosion that astronomers have never seen ...

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

An international team of astronomers has achieved a first in probing the early universe, using the James Webb Space Telescope ...

Learn about what may be the first ever superkilonova ever observed, emitting gravitational waves that hint at the collision ...

Columbia Professor Brian Metzger helped other astronomers interpret their observations of the unexpected stellar event.

Astronomers report a strange cosmic blast that looked like a kilonova, then behaved like a supernova, hinting at a possible first “superkilonova” and leaving scientists debating how stars truly die.

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

A puzzling cosmic blast detected in both light and gravitational waves may hint at a previously unseen type of explosion, ...

Twinkle, twinkle, little star. How I wonder what you, wait a minute, why are you twinkling so much? Um, guys, that's no ...

When the most massive stars reach the ends of their lives, they blow up in spectacular supernova explosions, which seed the ...