A rare ring of light surrounding a galaxy nearly 590 million light-years away from Earth has been discovered by a space ...

and an older yellow central bulge. Spanning 50,000 light-years, it showcases a dynamic past likely shaped by a merger with another galaxy. In 2006, astronomers found a mysterious second nucleus at ...

Euclid, the European Space Agency’s dark Universe detective, has made an astonishing discovery – right in our cosmic backyard ...