Astronomers observed the fading light of supernova SN 2025kg, which followed the fast X-ray transient (FXT) named EP 250108a.

The night sky may look calm, but behind the glowing points of light lies a violent and complex process of creation. Stars, ...

A star found in the Large Magellanic Cloud is remarkably unpolluted by heavier elements, suggesting it is descended from the ...

UChicago-led study analyzes massive galaxy clusters mapped by the Dark Energy Survey, offers new way to probe cosmic laws ...

Even before the first stars lit up the Universe, the Cosmos was not the cold place most researchers once imagined. New results suggest that the so-called cosmic “dark ages,” the muted era between the ...

HD 140283, better known as the Methuselah star, is around 200 light-years from Earth, in the constellation of Libra. It is known to be a high-velocity, sub-giant star, and one of the closest ...