Space stocks have had plenty of reasons to soar this fall. Non-public Elon Musk venture SpaceX completed a significant flight test of its Starship in October, while NASA's Europa Clipper departed for Jupiter's moon. Meanwhile, AST SpaceMobile Inc. NASDAQ: ASTS has skyrocketed by nearly 800% in the last year as it has launched satellites key to the delivery of its space-based cellular broadband service. While it has not reached quite the same heights as AST, Rocket Lab USA Inc. NASDAQ: RKLB has nonetheless o ...