CAPE CANAVERAL, Fla.—A crucial radar antenna on a European spacecraft bound for Jupiter is no longer jammed. Flight controllers in Germany freed the 52-foot (16-meter) antenna Friday after nearly a month of effort. The European Space Agency’s Jupiter Icy Moons Explorer, nicknamed Juice, blasted off in April on a decade-long voyage. Soon after launch, a…

CAPE CANAVERAL, Fla.—A critical antenna is jammed on a Jupiter-bound spacecraft launched two weeks ago, the European Space Agency reported Friday. The 52-foot (16-meter) radar antenna on Juice unfolded only one-third of the way following liftoff, according to the space agency. Engineers suspect a tiny pin may be protruding. Flight controllers in Germany plan to…

A spacewalk planned for Tuesday to repair a faulty antenna on the International Space Station was postponed indefinitely, NASA said, citing a “debris notification” it received for the orbiting research laboratory. Two U.S. astronauts had been scheduled to venture outside the space station at 7:10 a.m. ET to begin their work, facing what NASA officials…