1. Filled with explosive hydrogen, it was just as deadly. 2. In addition to the electrical short, Columbia also experienced a small leak of explosive hydrogen during its climb to orbit. 3. Midway through the flight, shuttle engineers released photographic evidence of a small leak of explosive hydrogen fuel from the exhaust nozzle of the right engine. 4. New airships, built with space-age materials and filled with inert helium rather than explosive hydrogen, are taking to the skies. 5. Space agency experts made the photographs public last Sunday, saying the irregularity suggested a small leak of explosive hydrogen. 6. The launching of the shuttle Columbia was postponed Thursday in the final hours of countdown, when potentially explosive hydrogen propellant leaked from a rocket engine valve. 7. Space shuttle Columbia began leaking explosive hydrogen fuel just hours before liftoff, forcing NASA to postpone the science mission for a week. 8. The chemical also can produce potentially explosive hydrogen gas when it comes in contact with water. |