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...

One theoretical model shows that young stars could power an outflow that matches what we see very closely.

This is a huge number.

For a bubble this size, this is very close.

This would shut down the formation of new stars in the galaxy.

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.