A discovery of binary stars could be the first step in building a more complete picture of how our galaxy formed, according ...

Astronomers have detected one of the darkest objects ever seen at a record cosmic distance—only with the assistance of ...

This article, originally titled "The Man Who Discovered the Universe," is from the Summer 2025 issue of Air & Space Quarterly ...

On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

The object was detected by observing how its gravity distorts light behind it. Astronomers have discovered an extremely faint ...

Astronomers have observed a primeval star that they believe to be the most “pristine” object in the universe. A team led by ...

In May 1964, Arno Penzias and Robert Wilson were testing how radio waves bounced off balloon satellites developed by Bell ...

Not all stars are created equally. Astronomers believe that the first stars to form after the Big Bang were mostly made of ...

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

Cosmologists can now explore data faster than ever before with a new emulator. As astronomers continue to uncover the mysteries of the universe, their work generates increasingly vast and intricate ...

Scientists using a global array of radio telescopes have detected the universe’s lowest-mass dark object by observing how it ...