A spiral galaxy is a type of galaxy originally described by Edwin Hubble in his
1936 work The Realm of the Nebulae and, as such, forms part of the Hubble ...
The most common type of galaxy is called a "spiral galaxy." Not surprisingly,
spiral galaxies look like spirals, with long arms winding toward a bright bulge at
Resembling festive lights on a holiday wreath, this NASA/ESA Hubble Space
Telescope image of the nearby spiral galaxy M74 is an iconic reminder of the ...
When Hubble developed his classification system for galaxies based on their
appearance in optical light, he divided the spirals into those in which the spiral
A composite image of the Messier 81 (M81) galaxy shows what astronomers call
a "grand design" spiral galaxy, where each of its arms curls all the way down ...
Spiral galaxies get their name by the fact that they have a spiral or whirl shape.
The "arms" of the spiral are the areas where stars are formed. These arms appear
Apr 18, 2000 ... There are three main types of galaxies: Elliptical, Spiral, and Irregular. Two of
these three types are further divided and classified into a system ...
Before delving into an answer, it is important to note that the spiral arms of
galaxies are not fixed, solid objects; rather, they are patterns of bright stars and
The classification of galaxies due to Hubble (1925) remains the most popular in
use today. There are two main categories, the spiral and elliptical galaxies, but ...
Spiral galaxies are the most common type in the universe. Our Milky Way is a
spiral, as is the rather close-by Andromeda Galaxy. Spirals are large rotating