Astronomers have uncovered a vast cloud of energetic particles—a "mini halo"—surrounding one of the most distant galaxy clusters ever observed, marking a major step forward in understanding ...

What was the universe like in the first few hundreds of millions of years after it came into existence? How did the first ...

While there's no shortage of mysteries surrounding the formation of the universe, scientists may have figured out the answer ...

A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it now.

Helium hydride’s origin also marked the beginning of a chain reaction that led to the formation of molecular hydrogen (H2), ...

To determine when water first formed in the universe, Latif and his colleagues used numerical models to trace the life cycles of two first-generation stars: one was 13 times heavier than our sun ...

Astronomers have discovered what could be the biggest known black hole in the universe. The gargantuan black hole, around 36 billion times more massive than our sun, is close to the theoretical upper ...

The discovery demonstrates that entire galaxy clusters, among the largest structures in the universe, have been immersed in high-energy particles for most of their existence.