Shaky start to a long journey
The U.S. attempted a huge step toward a distant planet and the interstellar space beyond it last weekbut not without some unexpected difficulty. At Florida's Kennedy Space Center, an 1,800-pound spacecraft known as Voyager 2 was launched atop a Titan-Centaur rocket and aimed at Jupiter, 579 million miles and nearly two years away. Voyager 2 was hardly aloft, however, before it reported a malfunction in the boom that carries a key package of TV cameras and scientific instruments.
The boom extended after lift-off on schedule, but apparently failed to lock. That complicated the mission and cast an...