New X-ray data from NASA’s Chandra telescope reveals Cassiopeia A’s chaotic final hours, showing how dying stars collapse and ...

For centuries, astronomers have puzzled over the origins of one of the universe's oldest and densest stellar systems, known as globular clusters. Now, a University of Surrey-led study published in ...

Stars often die with a final burst of beauty. For the first time, astronomers have captured visual proof that a star can explode not once, but twice before fading forever. Using the European Southern ...

Strict embargo: not for publication or external distribution until 10 September 2025 at 16:00 (London time), 10 September 2025 at 11:00 (US Eastern Time) For centuries, astronomers have puzzled over ...