Gencorp Inc

The October 28 explosion of an Orbital ATK Inc Antares rocket bound for the International Space Station was most likely caused by excessive wear of the bearings inside one of the rocket's GenCorp Inc engines, Orbital said on Tuesday, citing a nearly finished report.

The October 28 explosion of an Orbital ATK Inc Antares rocket bound for the International Space Station was most likely caused by excessive wear of the bearings inside one of the rocket's GenCorp Inc engines, Orbital said on Tuesday, citing a nearly finished report.