Astronomers have observed the interstellar object 3I/ATLAS displaying unusual behaviour, suggesting it may have fragmented ...

The James Webb Space Telescope was built with a flaw, and because it's a million miles away, we can't repair it, but we can ...

Monster black holes entered the cosmic scene soon after the Universe’s birth and grew rapidly, reaching millions or even ...

In 2023, astronomers detected a huge collision. Two unprecedentedly massive black holes had crashed an estimated 7 billion ...

Back on planet Earth, and deep inside a pitch-black, sulfuric cave on the Albanian-Greek border, we reported on a study that ...

First image from Vera C. Rubin telescope reveals a previously unnoticed feature of galaxy M61 that may explain its mysterious ...

Observations by the James Webb Space Telescope hint at an excess of "UB-bright" galaxies in the first 400 million years after ...

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 ...

Astrophysicist Pieter van Dokkum, a world-renowned expert in galaxy formation and evolution and a visionary in astronomical ...

A handful of extremely massive stars, each heavier than 1,000 Suns, may have sculpted the chemistry of the oldest star ...

A team of astrophysicists has unveiled how colossal stars thousands of times more massive than the Sun shaped the earliest star clusters and galaxies. These short-lived giants not only forged the ...

Astronomers have long puzzled over how the oldest and most mysterious star clusters in the universe—known as globular ...