Rockets can go up, or they can explode. Same thing for space stocks.I won't sugarcoat this for you: Last week was a pretty depressing time to be a space investor.In back-to-back developments Thursday, we learned first that an unmanned Nova-C lunar lander tried to touch down on the moon's South Pole. But it toppled over within a crater, fell on its side, and died a quiet death deprived of sunlight for its solar cells.A few hours later, the eighth flight test of the SpaceX Starship ended in a fireball when th ...