Space flight is hard. My thoughts go out to the family of the pilot killed today in the crash of Virgin Galactic’s SpaceShipTwo, and to all the people at Scaled Composites and Virgin Galactic. Opta ardua pennis astra sequi.

Space flight is hard. My thoughts go out to the family of the pilot killed today in the crash of Virgin Galactic’s SpaceShipTwo, and to all the people at Scaled Composites and Virgin Galactic. Opta ardua pennis astra sequi.