Astronomers have determined what caused the brightest cosmic explosion ever recorded. Lasting a matter of minutes, the gamma-ray burst, named GRB 221009A , was observed by astronomers in October 2022.

A supernova has exploded in the Pinwheel Galaxy 21 million light-years away. Named SN 2023ixf, it sets itself apart by being one of the brightest seen in a decade.

The brightest supernova ever may be pushing the boundaries of physics -- and that could be a huge help for astronomers. Share on Facebook (opens in a new window) Share on X (opens in a new window ...

In late May of 2015, scientists noticed something twice as bright as the brightest known supernova ever seen. Researchers initially thought the object, which they dubbed “ASASSN-15lh,” was ...

A mammoth star explosion known as SN2016aps, which occurred in a galaxy about 3.6 billion light-years from Earth, is the brightest supernova ever seen, a new study reports.

The brightness of the supernova, which has been designated SN 2006gy, wasn't that obvious to earthly observers because the star that blew up was 240 million light-years from Earth, ...

In a galaxy 3.8 billion light years from Earth lies the biggest, brightest supernova ever observed, emanating from a mysterious energy source no more than 10 miles across, scientists confirmed on ...

It's believed to be brighter than all the stars in the Milky Way combined. — -- Astronomers say they've discovered a superluminous supernova -- a cosmic explosion so bright it outshines the ...

Still visible today in the Big Dipper through small telescopes, it is the brightest supernova seen from Earth since SN 1987A, 27 years ago, and may be the closest type Ia supernova — the kind ...

This supernova is one for the record books. A mammoth star explosion known as SN2016aps, which occurred in a galaxy about 3.6 billion light-years from Earth, is the brightest supernova ever seen ...

This supernova — unceremoniously called ASASSN-15lh — is about twice as powerful as the last record breaker and some 200 times more powerful than a typical supernova.

The supernova was in a galaxy 3.8 billion light-years away and was 570 billion times brighter than our sun. It also packs more power than the most powerful supernova ever discovered by a factor of ...