Astronomers caught a massive star exploding 500 million light-years away almost from the moment the event began. A brief X-ray flash detected on March 21, 2026 turned out to be the opening signal of ...

A massive analysis of 2,884 exploding stars has uncovered new evidence that dark energy, the mysterious force accelerating the universe’s expansion, may change over time. The findings challenge a ...

Discover how nearly 3,000 supernovae are reshaping our understanding of dark energy and the universe's expansion. Insights ...

A fleet of telescopes around the world just captured the first shocking moments of a supernova explosion in the most detailed-ever observations of their kind. The explosive event was first spotted by ...

Hubble observations connect galactic winds and reionization, finding that stronger outflows in six compact galaxies accompany less escaping ionizing radiation.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A catalog of 2,884 Type Ia supernovae strengthens hints that dark energy may change as the universe evolves. (CREDIT: Shutterstock ...

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 ...

UC Berkeley supernova and black hole expert Alex Filippenko will share the 2026 Gruber Cosmology Prize, which was announced today (May 19) by the Gruber Foundation. The prize, one of the most ...