Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years ...

"This observation also demonstrates that we can use Webb to find individual stars when the universe was only 5% of its ...

The James Webb Space Telescope and other international observatories have spotted a 13-billion-year-old supernova. On Tuesday ...

The bright binary star system V Sagittae will flare up multiple times before finally going supernova within the next 100 ...

When a massive star dies, astronomers expect a familiar chemical script: hydrogen and helium on the outside, heavier elements ...

Astronomers watched as a black hole whipped up cosmic winds that shot material into space at 37,280 miles per second (60,000 ...

An international team of astronomers has investigated a short-lived optical flare designated AT2022zod. As a result, they found evidence indicating that this flare is an unusual tidal disruption event ...

The Cassiopeia A supernova remnant reveals that massive exploding stars can forge far more of life's essential ingredients ...

NASA and JAXA’s XRISM mission detected chlorine and potassium in Cassiopeia A, revealing how supernovae forge life-essential ...

The flash was spotted on March 14 by a French-Chinese space telescope called SVOM, which launched last year on a mission to track gamma-ray bursts, the brightest and most powerful explosions in the ...

An immensely powerful flash detected earlier this year was created by a massive star exploding when the universe was just ...

The winter sky is dominated by the constellation of Orion, halfway up from the southern horizon. Its two brightest stars - Betelgeuse and Rigel compete for your attention. Add the three stars between ...