Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years ...

The James Webb Space Telescope has captured the light of a star that exploded when the universe was still in its cosmic youth ...

Ancient Chinese astronomers observed a solar eclipse in 709 BCE with remarkable detail. These old records are now helping ...

The Webb space telescope observed a supernova that took place when the universe was 730 million years old, setting a new ...

A NASA planetary scientist has proposed what may be the first scientifically sound explanation for the mysterious Star of Bethlehem that guided the three wise men to the infant Jesus over two ...

Astronomers are a step closer to cracking one of the secrets of dark energy—the mysterious force believed to be causing the universe's accelerated expansion.

"Some of our ancestors were very skilled observers." A team of international researchers say they've uncovered new data on ...

Understanding how the universe transitioned from darkness to the emergence of stars marks a critical shift known as Cosmic Dawn. Yet, astronomers have struggled to unravel details about the first ...