Stars Form At Record Speeds In Infant Galaxy

Galaxies, including our own Milky Way, consist of hundreds of billions of stars. How did such gigantic galactic systems come into being? When galaxies are born, do their stars form everywhere at once, or only within a small core region? Recent measurements provide the first concrete evidence that star-forming regions in infant galaxies are indeed small — but also hyperactive, producing stars at astonishingly high rates.