Submitted: Jul 6, 2008 - WEDNESDAY, JULY 9 TV science This week's episode of NOVA ScienceNow will feature a trip to NASA's Goddard Space Flight Center, where astronauts are preparing for a repair mission to the Hubble Space Telescope; a search for the first primate; and a drug-resistant strain of bacteria striking soldiers in Iraq. At 9 p.m. on WGBH, Channel 2. Go to pbs.org/wgbh/nova/sciencenow.