We now have the most accurate 3D map of regions where stars are forming in our Milky Way, thanks to our Gaia spacecraft. ✨ This map is based on Gaia’s observations of 44 million ordinary stars and 87 O-type stars. (O-type stars are rare starts, they are young, massive and extremely bright and hot.) These star-forming regions are well-studied; many telescopes have captured stunning images of them. But now for the first time, we know what they look like in three dimensions and from an outside pers