Commentary

Elon Musk founded SpaceX with the goal to deliver humans to Mars. In order to achieve that goal, SpaceX will need to lower the cost of rocket launches and increase rocket reliability.  SpaceX has taken big steps to accomplish this by attempting to reuse its Falcon 9 first stage rockets…

Delta Air Lines is one of the largest commercial airlines in the world with over 700 aircraft in their fleet. They also operate the oldest fleet of the big four airlines in the United States. An old aircraft fleet will have lots of reliability problems if not managed well. However,…