Another attempt at launching a rocket bound for the International Space Station was aborted Tuesday morning at Cape Canaveral. In addition to carrying supplies, the SpaceX Dragon rocket contained an experiment by six seniors from Ocean City High School. Last October a similar rocket with the student’s experiment exploded six seconds after takeoff from a launch site in Virginia. The next launch attempt is set for 5:09 a.m. Friday, the ninth attempt to get the experiment into space.