An artist’s concept shows the Voyager spacecraft traveling through space against a field of stars. Credit: NASA/JPL-Caltech NASA’s Voyager 1 team tackled complex challenges by successfully switching to backup thrusters after the primary ones became clogged with silicon dioxide. The spacecraft uses its thrusters to stay pointed at Earth, but after 47 years in space some of the fuel tubes have become clogged. This adaptation was complicated as the spacecraft, now in interstellar space, continues its journey on dwindling power. Resolving Thruster Issues on Voyager 1 Engineers working on NASA’s Voyager 1 probe have successfully mitigated an issue with the...