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

Astronomers may have discovered the first example of an explosive cosmic event called a "superkilonova," in the form of a gravitational wave signal detected on Aug. 18, 2025.

This powerful side-by-side comparison shows just how bright a star explosion is. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Recently, the ...

Around 11,300 years ago, a massive star teetered on the precipice of annihilation. It pulsed with energy as it expelled its outer layers, shedding the material into space. Eventually it exploded as a ...

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

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

By following the supernova over time, astronomers could watch how those spectral lines shifted and faded, effectively tracking how the debris expanded and cooled. The persistence of inner-layer ...

Astronomers have, for the first time, recorded the moment a star’s explosion broke through its surface. The nearby supernova, SN 2024ggi, revealed a surprisingly olive-shaped blast when studied with ...