In rather plain fashion, the smallest galaxies are called dwarfs while the largest are called giants. Our Milky Way Galaxy is one of three large galaxies in the Local Group of Galaxies.

Yale researchers among those who discovered three “ultra-massive” galaxies, which were formed shortly after the Big Bang and ...

There are three main types of galaxies: elliptical, spiral and irregular. The largest galaxies are called elliptical because they look like big globes of light emitted from a multitude of stars.

Credit: ESO/José Francisco Salgado, EHT Collaboration With respect to structure, there are three types of galaxies: spiral, ...

By combining data from the DESI Legacy Imaging Surveys and the Gemini South telescope, astronomers have investigated three ...

While we have plenty of spiral galaxies, like our own Milky Way, these are only the most common types of galaxies out there. There are still others, like elliptical or irregular galaxies.

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...