69
      Tuesday
      90 / 70
      Wednesday
      90 / 70
      Thursday
      91 / 71

      Christmas Eve spacewalk on tap for astronauts

      The Christmas Eve spacewalk planned by NASA at the International Space Station should wrap up repair work on a faulty cooling line.

      Mission Control said Monday that unless something goes awry, two astronauts ought to finish installing a new ammonia pump Tuesday, during a second spacewalk. NASA originally thought three spacewalks might be needed.

      Astronauts Rick Mastracchio (Muh-STRACK-ee-oh) and Michael Hopkins removed the faulty pump during Saturday's spacewalk. Everything went so well, they jumped ahead.

      The next spacewalk should have been Monday, but was bumped a day so Mastracchio could swap suits. He inadvertently hit the water switch in the air lock following Saturday's spacewalk, and engineers suspect water intruded into his suit.

      NASA has conducted a Christmas Eve spacewalk only once before.