thumb|upright|PGM-17 Thor missile at Johnston Island On October 15, 1962, the "Bluegill Double Prime" test also misfired. During the test, the rocket was destroyed at a height of 109,000 feet after it malfunctioned 90 seconds into the flight. U.S. Defense Department officials confirm that the rocket's destruction contributed to the radioactive pollution on the island.
thumb|upright|PGM-17 Thor missile at Johnston Island On October 15 1962 the "Bluegill Double Prime" test also misfired During the test the rocket was destroyed at a height of 109000 feet after it malfunctioned 90 seconds into the flight US Defense Department officials confirm that the rocket's destruction contributed to the radioactive pollution on the island