Stars form when collapsing gas clouds condense so tightly that they ignite nuclear fusion. In the Milky Way, the gas is relatively diffuse, with stars clustered in small pockets throughout the loose tendrils of its spiral arms. But in SDSSJ1506+54, everything is very compact, with most of the galaxy's light streaming from a region just a few hundred light-years across, according to new research. Put another way, the galaxy is emitting starlight from an area just a fraction of the size of our own galaxy, but it's making stars hundreds of times faster. It's so fast, it's at the theoretical speed limit for this process--any faster, and newborn stars would blow away too much gas and deny the births of their brethren.