A family portrait of the Andromeda galaxy and its orbiting dwarf satellites raises questions about how galaxies evolve.

Faint structures play a crucial role in cosmic development, and scientists are only just beginning to grasp their full extent ...

A team of 48 astronomers from 14 countries, led by the University of Massachusetts Amherst, has discovered a population of ...

In A Nutshell Astronomers have identified 18 ancient, dust-shrouded galaxies from the universe’s first billion years that ...

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

Two far-away galaxies have been described as “blood-soaked eyes” by NASA after the Hubble and James Webb Space telescopes captured an intriguing video of the two colliding galaxies. NASA says the ...

This illustration shows a galaxy forming only a few hundred million years after the big bang, when gas was a mix of transparent and opaque during the Era of Reionization. Data from NASA’s James Webb ...

A nearby dwarf galaxy poses an intriguing mystery: How is it able to form brilliant star clusters without the dusty, gas-rich environments found in larger galaxies? The answer, astronomers believe, ...

NASA's James Webb Space Telescope observed three galaxies in the universe's very early stages. The galaxies were likely forming around when our universe was 400 million to 600 million years old.

Almost all the light we see in the universe comes from stars which form inside dense clouds of gas in the interstellar medium. The rate at which they form (referred to as the star formation rate, or ...