The universe's first galaxies were hot messes, according to a recent study. During their younger days, they were wild, ...

While scouring images from the James Webb Space Telescope, astronomers spotted Capotauro, "one of the most puzzling ...

An international team led by ICREA researcher Mark Gieles, from the Institute of Cosmos Sciences of the University of ...

If it is a galaxy, it would be the oldest known galaxy in the cosmos, but it could also be a brown dwarf or an early black hole.

A team of astrophysicists has unveiled how colossal stars thousands of times more massive than the Sun shaped the earliest ...

Is this interstellar visitor the oldest comet ever seen? This space rock's unusual orbit and composition led to an explosive ...

The James Webb Space Telescope has looked back into deep time to find “rubies” or “little red dots” stretched across the ...

A new model sheds light on the long-standing chemical mysteries found in globular clusters, the ancient archives of the universe. An international collaboration led by ICREA researcher Mark Gieles, fr ...

NASA scientists stunned as interstellar comet 3I/ATLAS shows bizarre near-Sun behaviour, defying known physics and hinting at ...

The Methuselah Star, also known asHD 140283, has long been a subject of fascination among astronomers. Its age, initially estimated to be older than the universe itself, challenged our understanding ...

For over a decade, a dim but persistent glow near the center of the Milky Way has confused astronomers. This mysterious emission, known as the Galactic Center Excess, glows in high-energy gamma rays ...