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

The James Webb Space Telescope has captured the light of a star that exploded when the universe was still in its cosmic youth ...

For the first time, scientists have made a clear X-ray detection of chlorine and potassium in the wreckage of a star using ...

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

NASA's James Webb Space Telescope has observed previously undiscovered structures in the SN 1987A supernova. Researchers hope the new observations will shed light on how stars die. Photo Courtesy of ...

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

A distant gamma-ray burst has led astronomers to a rare supernova from the Universe’s early years, revealed by JWST. But why ...

The surprisingly high amounts of chlorine and potassium in a supernova remnant could help solve the mystery of where these crucial elements come from ...

Learn more about the supernova, which is more than a billion years older than the previous record-holder.

NASA’s James Webb Space Telescope has spotted a multiply-imaged supernova in a distant galaxy designated MRG-M0138. Two images of the supernova (circled) are seen in the Webb NIRCam (Near-Infrared ...

A faint, tiny flash of red light glimpsed at the Cosmic Dawn more than 13 billion years ago has smashed the record for the ...

NASA's Hubble Space Telescope captured a star that exploded and died 11 billion years ago. A massive galaxy cluster warped light from that supernova into three reflections. The three imprints show ...