NASA’s long, slow journey back to the moon now feels like a sprint

To pick the perfect apple—or at least one that satisfies the fussy demands of blemish-averse Canadian shoppers—it takes swift hands and a strong back. A commercial picker has less than one second to assess an apple’s colour, size and quality, and then pluck it from a cluster of other fruit without knocking any to the ground. And they have to repeat that process a dizzying multitude of times each day, loading thousands of pounds of fruit into heavy harvest bags that will then be poured into bins bound for cold storage.This, for the past 40 years, has been Roy Campbell’s job. Campbell...