What is the most common type of galaxy in the universe?

The most common type of galaxy in the universe is the dwarf galaxy. These are small galaxies that typically contain only a few billion stars, compared to the hundreds of billions of stars in larger galaxies. Dwarf galaxies are found throughout the universe, and many are satellites of larger galaxies.

There are two main types of dwarf galaxies: elliptical and irregular. Elliptical dwarf galaxies are shaped like ellipsoids and are typically found in galaxy clusters. Irregular dwarf galaxies, as their name suggests, have irregular shapes and are often found in isolation or in the outer regions of galaxy clusters.

Dwarf galaxies are important for several reasons. First, their abundance in the universe means they play a significant role in shaping the large-scale structure of the cosmos. Second, they are often used as probes of the early universe, as their relatively simple properties make them easier to study than larger, more complex galaxies. Finally, some dwarf galaxies are thought to be the building blocks of larger galaxies, as they merge and are incorporated into their larger counterparts.

The most common type of galaxy in the universe is the elliptical galaxy. Elliptical galaxies are shaped like stretched-out circles, or ellipses. Some elliptical galaxies are more stretched out than others. One might look almost perfectly circular. Another one might look long and flat. Elliptical galaxies are the largest and most common galaxies observed. They make up about 20% of nearby galaxies.

Elliptical galaxies are thought to be formed by the merger of two or more smaller galaxies. They are typically very old and contain mostly older stars. They also have very little dust and gas. This means that they are not actively forming new stars.

Some of the most famous elliptical galaxies include M87, which is located in the Virgo Cluster, and Messier 105, which is located in the Leo Group.

Here is a table of the different types of galaxies and their estimated percentages in the observable universe:

| Type | Percentage | ||| | Elliptical | 20% | | Spiral | 60% | | Irregular | 20% |

It is important to note that these percentages are just estimates, and the actual percentages may vary depending on the region of the universe that is being observed.