Hydrogen Leak Halts Shuttle Launch

Stan Honda/Agence France-Presse — Getty Images There would be no countdown to launch after NASA delayed the launch of the space shuttle Endeavour due to a hydrogen gas leak.KENNEDY SPACE CENTER, Fla. — Saturday’s launching of the space shuttle Endeavour was called off because of a hydrogen leak similar to one that delayed a space shuttle launching in March.The National Aeronautics and Space