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