Milky Way
The galaxy that contains our Solar System, characterized by its barred spiral structure with multiple spiral arms extending from a central bar.
Source: esa.int
APODs including "Milky Way"
Globular Cluster M2
11/06/2001
Beneath the south pole of our Milky Way Galaxy lies a ball of over 100,000 stars. M2, the second object on Charles Messier's eighteenth century list of bright diffuse sky objects, is known as a globular cluster, and orbits the center of our Galaxy like nearly 200 other globular clusters left over from the early days of our universe. M2, pictured above, spans over 150 light-years, lies about 50,000 light-years away, and can be seen with binoculars towards the constellation of Aquarius. Determining the distances and ages to globular clusters like M2 constrains the scale and age of our entire universe.