Betelgeuse, the bright reddish star marking the shoulder of the constellation Orion, is one of the closest stars to Earth that could plausibly explode as a supernova within a human lifetime, at least ...

High in the winter sky, marking the shoulder of the constellation Orion, sits a star nearing the end of its life in dramatic ...

Three decades of supernova observations are adding to hints that dark energy may be changing over cosmic time.

The results add to evidence that dark energy, the unknown component believed to drive that expansion, may evolve rather than ...

Researchers have assembled Unite, the largest internally consistent Type Ia supernova Hubble diagram yet, combining 2,884 ...

A distant star has captured astronomers' attention over the past decade, teasing them with indications that it will soon ...

A spectacular supernova, SN 2026aaiv, has erupted in the spiral galaxy NGC 7331, located 45 million light-years away in the ...

Astronomers have studied a star located several million light-years away. According to them, it was expected to soon explode ...

When a star reaches its final stages of life, it ends in a bright and powerful explosion called a supernova and scatters material across the universe. A new study led by a University of Hawaiʻi at ...

Earth is quietly collecting radioactive debris from an ancient stellar explosion as our Solar System drifts through a giant cloud of gas and dust between the stars. Scientists analyzing Antarctic ice ...

The most comprehensive catalog of exploding white dwarf stars ever assembled has revealed new clues about dark energy, the ...