Stellar streams are trails of stars that astronomers can study to solve mysteries about the history of our Milky Way galaxy and, potentially, the dark matter that helps shape the cosmos despite ...

Astronomers have identified dozens of stellar streams in the Milky Way, offering clues about the galaxy’s structure and ...

Astronomers have spotted a mysteriously mature “baby cluster” of galaxies in the early universe, scarcely a billion years after the big bang. Although not a full-grown, full-blown galaxy cluster, the ...

Astronomers at The University of Manchester have played a leading role in the discovery of a new cosmic object that is much larger than anything astronomers have seen before in the distant universe.

In an extraordinary revelation that reshapes our understanding of the Universe, astronomers have uncovered a colossal cosmic structure that had long remained veiled behind the dust and stars of our ...