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M101
Messier 101 (M101), also known as the Pinwheel Galaxy, is a face-on spiral galaxy approximately 25 million light-years away in the constellation Ursa Major. Spanning about 170,000 light-years, it is nearly twice the size of the Milky Way and is characterized by its grand design spiral structure.
Source: science.nasa.gov
APODs including "M101"
Messier 101
16/05/2025
Messier 101
02/06/2023
Supernova Discovered in Nearby Spiral Galaxy M101
22/05/2023
Messier 101
27/11/2021
21st Century M101
06/11/2019
A View Toward M101
15/03/2019
The View Toward M101
04/05/2018
A View Toward M101
20/05/2017
Big Dipper, Deep Sky
23/01/2016
21st Century M101
22/01/2016
The View Toward M101
21/01/2016
M101: The Pinwheel Galaxy
14/06/2015
21st Century M101
13/07/2012
A Young Supernova in the Nearby Pinwheel Galaxy
26/08/2011
Messier 101
15/04/2011
Spitzer's M101
30/12/2009
M101: The Pinwheel Galaxy
14/04/2009
Spitzer's M101
25/07/2008
Logarithmic Spirals
17/05/2008
Messier 101
02/03/2006
M101: The Pinwheel Galaxy
10/03/2003
M101: An Ultraviolet View
10/06/2000
Candidates for a Hypernova
20/04/1999
M101: The Pinwheel Galaxy
05/08/1997
M101: An Ultraviolet View Credit:
08/06/1997
An Ultraviolet Image of M101
27/06/1995