However, the new observations show that light from newborn stars alone can be enough to do the job. (sciencenewsforstudents.org)
In this result from 2011, astronomers found that gas blown out of galaxies from energetic newborn stars often will fall back into the galaxy, providing additional fuel for new star formation. (hubble25th.org)
At these wavelengths, astronomers can peer at the disks of gas and dust around newborn stars, see into star - forming clouds, and observe early galaxies that are bright in submillimetre wavelengths but obscured by dust in optical light. (eso.org)