NASA pulled off the unthinkable on July 3: a first-of-its-kind orbital rescue mission for the aging Swift space telescope. The LINK satellite, built by Arizona startup Katalyst Space Technologies, launched aboard the final flight of Northrop Grumman's Pegasus XL rocket — carried aloft by a modified L-1011 Stargazer jet and dropped from 39,000 feet over the Marshall Islands. After weather and software delays,...