Variety of Galaxies

Using by powerful telescopes, in most galaxies only detected mixed light of all the stars, but show the closest individual stars. Galaxies come in a variety of ways. In 1930 Hubble classified galaxies into elliptical, spirals and irregulars, the first two being the most frequent.

Elliptical galaxies

Some galaxies have a globular shape, with a bright nucleus. They called ellipticals, contain a large population of old stars, usually little gas and dust,and some newly formed stars. Elliptical galaxies have a variety of sizes,

An elliptical spiral galaxy changed

The U.S. space agency NASA captured the evolution from an elliptical spiral galaxy, a finding that will help to understand galaxy evolution. With help of the Galaxy Evolution Explorer from NASA, the researchers found how the galaxy NGC 3801 is losing some of the cold gas inside symptom of this change. It has long been known that gas-rich spiral galaxies like our Milky Way are contracted to create elliptical galaxies as observed in the study, with a small population of stars.The process that guides the great transformation of young galaxies spiral to elliptical galaxies is the rapid loss of cold gas, which serves as fuel for the formation of new stars. Experts believe they have found that feature in the NGC 3801.