Rocket builder Astra Space on Saturday launched its first rocket since the company went public. At liftoff, the rocket appeared to move sideways rather than straight up. Astra founder, chairman and CEO Chris Kemp told CNBC that about a second into the flight, one engine shut down. The company is currently investigating the reason. Astra founder and Chief Technology Officer Adam London added that the system performed relatively well under the circumstances. The rocket had sufficient thrust even with one engine out to very slowly lift off the pad, and the guidance system maintained control of the rocket. About 2...