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Spiral Arms
Regions of stars and interstellar matter that extend from the center of spiral galaxies, forming a spiral pattern; in the Milky Way, these include the Orion Arm where our Solar System resides.
Source: esa.int
APODs including "Spiral Arms"
Bright Spiral Galaxy M81
17/09/2017
NGC 2442: Galaxy in Volans
17/08/2017
NGC 4449: Close-up of a Small Galaxy
14/07/2017
Messier 63: The Sunflower Galaxy
12/07/2017
Hidden Galaxy IC 342
08/07/2017
Spiral Galaxy NGC 6744
26/05/2017
Star Cluster, Spiral Galaxy, Supernova
25/05/2017
A View Toward M101
20/05/2017
NGC 4302 and NGC 4298
21/04/2017
Leo Trio
12/04/2017
NGC 3621: Far Beyond the Local Group
24/02/2017
Clouds of Andromeda
04/01/2017
NGC 4414: A Flocculent Spiral Galaxy
20/11/2016
M63: The Sunflower Galaxy from Hubble
09/11/2016
The Hydrogen Clouds of M33
07/10/2016
M33: Triangulum Galaxy
17/09/2016
The Whirlpool Galaxy and Beyond
06/09/2016
M63: Sunflower Galaxy Wide Field
04/08/2016
NGC 1309: Spiral Galaxy and Friends
14/07/2016
Arp 286: Trio in Virgo
06/07/2016
Sculptor Galaxy NGC 134
04/03/2016
Galaxy Wars: M81 versus M82
03/02/2016
Hidden Galaxy IC 342
29/01/2016
21st Century M101
22/01/2016
Barred Spiral Galaxy NGC 1300
09/01/2016
In the Center of Spiral Galaxy NGC 3521
30/11/2015
Unraveling NGC 3169
06/11/2015
Starburst Galaxy Messier 94
23/10/2015
Bright Spiral Galaxy M81
17/10/2015
Galaxy, Stars, and Dust
12/10/2015