Watch All 5 SpaceX Rocket Landings in This Epic Video

The rocket landings by SpaceX are part of the company's quest to perfect a reusable launch system that could drastically lower the cost of spaceflight by reusing boosters instead of just throwing them away. During today's launch, SpaceX launched a Falcon 9 rocket from Florida's Cape Canaveral Air Force Station, sending a Dragon capsule filled with NASA cargo toward the International Space Station. The rocket's first-stage booster then returned to Earth, making a pinpoint touchdown on a Spac