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
Aug 15, 2013 ... A spiral galaxy has a distinct winding shape. Most of the galaxies observed by
astronomers are spiral galaxies.
Dec 16, 2011 ... Resembling festive lights on a holiday wreath, this NASA/ESA Hubble Space
Telescope image of the nearby spiral galaxy M74 is an iconic ...
Spiral galaxies get their name from the shape of their disks. In a spiral galaxy, the
stars, gas and dust are gathered in spiral arms that spread outward from 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
Spiral galaxies may remind you of a pinwheel. They are rotating disks of mostly
hydrogen gas, dust and stars. Through a telescope or binoculars, the bright ...
Mar 18, 2016 ... Astronomers have identified 53 “super spirals” — spiral galaxies that are huge
and incredibly luminous — as part of a project exploring ...
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 ...
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 ...