NASA officials will continue to analyze a small water leak aboard space shuttle Discovery while aiming for a June 2 launch date for its last ferry trip to Mir.

The leak was discovered during a test Monday of Discovery's new lightweight fuel tank. Although the tank passed the fueling test, engineers noticed water leaking overboard from an unrelated valve.NASA spokesman Bruce Buckingham said Tuesday that shuttle managers may decide to fly with the leak since it's so small and would not harm the shuttle or Mir.