It's not in the atmosphere.
The milky way contains about a dozen black holes in the milky way.
The galaxy that contains Earth is called the Milky Way.
The Milky Way contains a supergiant blackhole at its center.
The Milky Way is the galaxy that contains our Solar System
An atmosphere occurs when gases are held in a gravitational field by a body. The Milky Way is a galaxy not a planet or star and does not have an atmosphere of its own.
The galaxy that contains Earth and the rest of the Solar system is the Milky Way galaxy.
There is no atmosphere in interstellar space.
The Milky Way Galaxy contains interstellar matter that may form new stars.
..What..? The univere is EVERYTHING, including the milky way galaxy.
The Solar System contains the Earth-Moon system. The Milky Way galaxy contains the Solar System. The Virgo supercluster contains the Milky Way galaxy. The Universe contains the Virgo supercluster.
Milky WaySunEarth
The Milky Way Galaxy.