The James Webb Space Telescope has captured new imagery of supernova remnant Cassiopeia A. It is 11,000 light-years away in ...

A study using the NASA’s Chandra X-ray Observatory and other X-ray telescopes has revealed that "an exploded star can pose more risks to nearby planets than previously thought." The Chandra team ...

Created using data from two extensive surveys, this spectacular radio image of the galactic plane of the Milky Way provides valuable insights into the birth and death of stars.

In a controversial new paper, researchers argue that the acceleration of the universe's expansion has slowed down.

A colossal black hole 10 billion light-years away has been caught devouring one of the universe’s biggest stars, unleashing a ...

Astronomers may have misread cosmic acceleration for 27 years. The universe may be slowing down, not speeding up.

Astronomers analysing supernova and DESI data suggest dark energy—the mysterious force accelerating cosmic expansion—may be ...

For several decades, evidence has suggested that the expansion of the universe is accelerating. Crucial to those estimates ...

Scientists now believe highly magnetised neutron stars, or magnetars, are a significant source of gold and other heavy ...

As if dark energy weren't already mysterious and baffling enough, new research suggests that this unknown force may not be ...

Korean scientists studying Type Ia supernovae have found strong evidence that the universe's expansion is not accelerating, ...

Three young stars have been kicked out of their cosmic nursery, perhaps for engaging in a gravitational brawl, according to Hubble Space Telescope scientists, who released images of the trio on ...