Galaxies as 'cosmic cauldrons'

Star formation within interstellar clouds of gas and dust, so-called molecular clouds, proceeds very rapidly yet highly ‘inefficiently’. Most of the gas is dispersed by stellar radiation, revealing galaxies to be highly dynamic systems, like ‘cosmic cauldrons’, consisting of components that constantly change their appearance. A team of scientists led by astrophysicist Dr. Diederik Kruijssen from Heidelberg University has reached these conclusions based on new observations of the NGC 300 spiral galaxy.
Source: EurekaAlert, https://www.eurekalert.org