Galaxy classification has long been based on their visible appearance, creating well-defined categories. Spiral galaxies like our Milky Way display a flat disk structure with characteristic spiral ...

A "classification" is when a volunteer or citizen scientist finishes marking up or sorting one image or other piece of data. Each classification done by volunteers for the Redshift Wrangler project ...

The ESA's Euclid space telescope has been in space for just over a year, investigating some of the deepest mysteries of the cosmos. By observing cosmic structures up to a distance of 10 billion ...

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 ...

Distant galaxies could be far more massive than we thought, scientists say - ...

Data from NASA's James Webb Space Telescope has revealed dozens of small galaxies that played a starring role in a cosmic makeover that transformed the early universe into the one we know today. White ...

Cosmology seeks to describe the large-scale origin, content and fate of the Universe, while extragalactic astronomy extends these questions into the formation, evolution and interactions of galaxies ...