Mystery objects discovered near supermassive black hole. Astronomers have discovered several bizarre objects at the galactic centre that are concealing their true identity behind a smokescreen of dust; they look like gas clouds but behave like stars. Life rebounded within a few years after the dinosaur-killing asteroid hit. A new study claims life quickly returned to the dinosaur-killing KT boundary event asteroid impact site. New Kepler mission. NASA former planet-hunting Kepler space telescope is on a new mission studying the secrets of open star clusters.