Box score These are the grim numbers for another big and bright Friday night at Minute Maid Park, when the only fireworks for Astros fans were of the postgame variety. For Mariners rookie righthander Taijuan Walker, one of the game’s projected arms of the future, one career win in his major league debut. For the Astros, it was their 90th loss on the season, with a third straight 100-loss campaign within increasingly uncomfortable reach. For Mariners centerfielder Dustin Ackley, four hits and four RBIs and the best catch of the night on Astros outfielder Robbie Grossman’s drive just to the base of the right field side of Tal’s Hill. For [...]