A long-predicted type of cosmic explosion has finally burst onto the scene. Researchers have found convincing evidence for an electron-capture supernova, a stellar explosion ignited when atomic nuclei ...

WASHINGTON (Reuters) -Astronomers have observed the calamitous result of a star that picked the wrong dance partner. They have documented what appears to be a new type of supernova, as stellar ...

An artist’s illustration depicts silicon, argon and sulfur releasing from a massive star. - Adam Makarenko/W. M. Keck Observatory Astronomers have observed what they are calling a new type of ...

A sparkling new supernova has appeared in the night sky, and a telescope atop Mauna Kea in Hawaii was perfectly poised to capture the aftermath of the cosmic burst. The supernova was first spotted ...

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Supernova, A supergiant that collapses onto itself and explodes with such force that it releases more energy than millions of suns. (Photo by: QAI Publishing/Universal Images Group via Getty Images) ...

A cloud of expanding gas in space is the largest supernova remnant ever seen in the sky, a new study confirms. The star that created the Antlia supernova remnant exploded roughly 100,000 years ago.