Behind the Scenes: Hubble at NASA Goddard

Systems engineer Joe Stock sits at his workstation in the Operations Support Room of Hubble’s control center and monitors a test on April 16, 2019. An expert on the sensors that keep Hubble locked onto a target, Stock makes sure that those sensors keep Hubble steady when collecting science data. How steady? Hubble’s requirement is the same as pointing a laser on the head of the president on a dime over 200 miles away for up to 24 hours.