The Air Force's $82.7 million launch services award to SpaceX this week cost 40 percent less than estimated, according to one of the service's top space acquisition officials. The service awarded SpaceX the contract to launch the second next-generation Global Positioning System satellite on April 27, marking the first National Security Space launch contract in 10 years not awarded to United Launch Alliance. Lt. Gen. Samuel Greaves told reporters April 28 that while the launch cost is significantly lower than...