We see that all the hydrogen gas in this region of the Galaxy is disturbed, with many smaller outflows closer to the plane of the Galaxy and then a giant plume of gas that forms a sort of cap on the whole thing.
This giant gas bubble contains about a million times more mass than the Sun and the energy powering its outflow is equal to about 100 supernova explosions.
This giant gas bubble contains about a million times more mass than the Sun, and the energy powering its outflow is equal to about 100 supernova explosions.