The rover crested a nearby dune with the trailer in tow. It slowed for a few moments, then continued toward the ship at top speed. It came to a stop twenty meters away.There it remained for ten minutes while the astronaut inside suited up.He stumbled excitedly out of the airlock, falling to the ground then scrambling to his feet. Beholding the MAV, he gestured to it with both arms, as if in disbelief.He leaped into the air several times, arms held high with fists clenched. Then he knelt on one knee and fist-pumped repeatedly.Running to the spacecraft, he hugged Landing Strut B. After a few moments, he broke off the embrace to perform another round of leaping celebrations.Now fatigued, the astronaut stood with arms akimbo, looking up at the sleek lines of the engineering marvel before him. The Martian