The March Monthly Media is a “Spacetime with Stuart Gary” podcast interview with Dr Anshu Gupta on a recent paper she lead. She talks about the affect the puffiness of a galaxy has on star formation, and that puffier galaxies form stars for longer. You can listen to the podcast here.

We’ve already written an article on the research, which you can read here.

Distribution of stars (red), hot gas (green) and neutral gas (blue) in 5 randomly selected TNG100 simulated galaxies in increasing order of stellar mass. From top to bottom: (i) top two rows: extended massive galaxies at z = 2 (first) and their descendants at z = 0 (second row); (ii) counterpart normal-size (aka normal) massive galaxies at z = 2 (third row) and their descendants at z = 0 (bottom row). The dashed circle in each panel corresponds to the stellar half mass radii.