Four galaxies crowd the center of a collapsing structure 1.4 billion years after the Big Bang. Each one is churning out stars ...

The existence of massive, elliptical galaxies in the early universe has puzzled astronomers for two decades. An international ...

The vastness of space allows for a huge variety of structures to pop up all over the place. Even things we think of as one-and-done objects—like galaxies—come in quite a few shapes and sizes. Follow ...

Picture a galaxy, with its shining stars and space dust. What does it look like in your mind? Chances are, it’s a swirling circle of galactic energy. A galaxy is often described as one of a few ...

According to the prevailing “cold dark matter” theory of the evolution of the universe, every galaxy is surrounded by a halo of dark matter that can only be detected indirectly by observing its ...

NGC 7722 is located approximately 187 million light-years from Earth in the constellation Pegasus. Also known by its catalog ...

New radio observations of molecular gas reveal how dozens of galaxies could have rapidly merged together in the early Universe.