A new arrival is causing a buzz at the Kennedy Space Center. It’s named “Tenacity” and it’s the newest Dream Chaser space plane. The 30-foot-long craft, looks strikingly similar to a mini-Space Shuttle, and it’s now undergoing final tests ahead of its debut mission later this year. It’s a winged space vehicle, or “space plane,” designed to orbit the earth and then glide through the atmosphere and land on a runway, much like an airplane.