CAPE CANAVERAL, FL—Atlantis’ astronauts grabbed hold of the Hubble Space Telescope at the end of last week, quickly setting their sights on the unprecedented spacewalking repairs they will attempt over the next couple of days. “It’s going to be tough,” explained head astronaut, Jim Bernstein. “My hands are shaking just thinking about it. One wrong move and we could float off into space.” The Atlantis astronauts tried to keep cool on the way up as a way to cope with