A purebred beagle. A purebred dog typically refers to a dog of a modern dog breed with a documented pedigree in a stud book and may be registered with a breed club that may also be part of a national kennel club. Purebred dog may also be used in a different manner to refer to dogs of specific dog types and landraces that are not modern breeds.
The SpaceX reusable launch system development program is a privately funded program to develop a set of new technologies for an orbital launch system that may be reused many times in a manner similar to the reusability of aircraft.
SpaceX will launch the Heavy variant of the company's Falcon booster on its first demonstration flight. This new system uses a standard Falcon 9 core with two strap-on boosters derived from the Falcon 9 first stage for a total of 27 Merlin 1D engines firing at liftoff.