We review progress over the past decade in observations of large-scale star formation, with
a focus on the interface between extragalactic and Galactic studies. Methods of measuring …

Stars do not generally form in isolation. Instead, they form in clusters, and in these clustered
environments, newborn stars can have profound effects on one another and on their parent …

The conversion of gas into stars is a fundamental process in astrophysics and cosmology.
Stars are known to form from the gravitational collapse of dense clumps in interstellar …

Context. The spiral structure of the Milky Way is not yet well determined. The keys to
understanding this structure are to increase the number of reliable spiral tracers and to …

We describe new Hi-GAL based maps of the entire Galactic Plane, obtained using
continuum data in the wavelength range 70–500 μm. These maps are derived with the …

The distribution of metals in the Galaxy provides important information about galaxy
formation and evolution. H ii regions are the most luminous objects in the Milky Way at mid …

Radiative and mechanical feedback of massive stars regulates star formation and galaxy
evolution. Positive feedback triggers the creation of new stars by collecting dense shells of …

Context. The past decade has witnessed a large number of Galactic plane surveys at
angular resolutions below 20′′. However, no comparable high-resolution survey exists at …

Fast radio bursts (FRBs) are millisecond-duration, bright (approximately Jy) extragalactic
bursts, whose production mechanism is still unclear. Recently, two repeating FRBs were …

FEEDBACK is a SOFIA (Stratospheric Observatory for Infrared Astronomy) legacy program
dedicated to study the interaction of massive stars with their environment. It performs a …