NASA’s James Webb Telescope discovers the oldest supernova ever seen, offering insights into early universe star formation ...

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

"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 ...

What can imaging supernovae (plural for supernova) explosions teach astronomers about their behavior and physical ...

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

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

Researchers from Kyoto University and Meiji University have led the quest to understand the origins of elements and the ...

Berkeley and elsewhere have performed spectroscopic and photometric study of a peculiar supernova designated SN 2021ukt, which underwent a transition from Type IIn to Type Ib. Results of the new study ...

Scientists have found an "extreme" solution to the mysterious origins of critical life-supporting elements chlorine and potassium.

For years, scientists thought they understand what happens when stars explode. New earliest-ever mages of supernova events ...

XRISM’s high-precision X-ray data revealed unusually strong signatures of chlorine and potassium inside the Cassiopeia A supernova remnant. These levels are far higher than theoretical models ...