A spacecraft called Hera has been launched to survey the aftermath of an asteroid impact test conducted by NASA's DART mission. The Hera mission is expected to investigate the wreckage of the asteroid that was crashed into, with some outlets suggesting it may provide information about the asteroid's composition or the effects of the impact. The specifics of what Hera will find or the goals of the mission are not entirely clear, but it appears to be related to a planetary defense effort.