Hot gas fountains and the galactic spa

here's a new article that came out today about new data confirming a mechanism where hot gas bursts out of the Milky Way's disc and into the galactic halo, giving rise to so-called galactic fountains:

New evidence for supernova-driven galactic fountains in the Milky Way

Observing the X-ray-bright gas in the halo of the Milky Way, ESA's XMM-Newton has gathered new data which favour a process involving fountains of hot gas in our Galaxy. Such a scenario, with the gas flowing from the galactic disc into the halo where it then condenses into cooler clouds and subsequently falls back to the disc, confirms the importance of supernova explosions in forging the evolution of the interstellar medium and of the entire Galaxy. More...

Image credits: ESA